GF-115-C OMM-0084_0D Modulating, Condensing, Hot Water Boiler Models: • • • • • • MLX-303 MLX-454 MLX-606 MLX-757 MLX-909 MLX-1060 Modulex E8 Controller And BC Module (BCM) USER MANUAL Installation, Operation, and Maintenance E8 Controller for MLX Series Boilers Boiler Communications Module (BCM) for MLX Series Boilers .
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Technical Support: (Mon–Fri, 8am-5pm EST) 1-800-526-0288 www.aerco.com AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 • Phone: 800-526-0288 Disclaimer The information contained in this manual is subject to change without notice from AERCO International, Inc.
GF-115-C OMM-0084_0D Table of Contents Table of Contents .......................................................................................... 3 1. INTRODUCTION ..................................................................................... 7 1.1 Safety and Warnings ........................................................................................ 7 2. E8 CONTROLLER AND BCM DESCRIPTION .......................................... 9 2.1 E8 Controller Features And Functions ...................
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D 5.2.4 Configuring Set Point High and Low Limits Per Outside Temperature Sensor . 44 0 to 10 Volt Remote Set Point Mode ............................................................. 47 5.3.1 Remote Signal Source Wiring Connections ........................................................ 47 5.3.2 Configuring Remote Signal Source..................................................................... 48 5.3.
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D 7.7.2 Monitoring and Configuration Only ................................................................... 74 7.7.3 AERCO BMS II/ACS Modbus Control and Monitoring .................................... 74 7.7.4 Modbus Remote Setpoint Control and Monitoring ............................................. 74 7.7.5 EMS or BAS Set-Up As Master to BCM Controller Slaves ............................... 74 7.
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GF-115-C OMM-0084_0D 1. INTRODUCTION The information in this manual provides a guide to the operation of the Modulex Boiler using the E8 Controller and the Boiler Communications Module (BCM) mounted on the front of the unit. Sections 3, 4, 5, 6, and 8 provide descriptions and procedures for the E8 Controller. Sections 7, 9, and 10 provide similar information for the BCM. It is imperative that the initial startup procedures be performed by factory trained personnel.
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D (This page left intentionally blank) PR1: 11/30/12 AERCO International, Inc. • 100 Oritani Dr.
GF-115-C OMM-0084_0D 2. E8 CONTROLLER AND BCM DESCRIPTION Modulex boilers contain advanced and reliable electronic controls, which includes the E8 Controller and the BCM (Boiler Communications Module), providing comprehensive programming and monitoring of the Modulex boiler and its functions. Features and functions of the E8 Controller are described in the following sections. 2.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 2.2 BCM Features And Functions The BCM (Boiler Communications Module) is an electronic module in Modulex boilers (one per burner), which supports full interoperability to BAS (Building Automation Systems) via Modbus protocol to make remote communications and control possible.
GF-115-C OMM-0084_0D 3. E8 CONTROLLER OPERATION The E8 Controller operates in NORMAL Mode when the controller door is closed, which allows for monitoring the boiler status through the display window and setting the HEATING Mode. When the door is opened, the unit enters MENU Mode, and in this mode the boiler may be initialized, configured, and adjusted. The controls and display for the E8 controller are described in the following sub-sections. 3.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 3.1.2 HEATING Mode Selection (in NORMAL Mode) Heating modes may be selected using the Rotary Knob on the controller when the hinged door is in the closed position (NORMAL Mode). As the Rotary Knob is turned, each appropriate heating mode symbol is displayed, in turn, along the lower edge of the display. Mode changes take effect when the setting is not changed for 5 seconds.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 3.1.3 MENU Mode Operation (Door Open) Opening the E8 controller hinged door reveals the E8 controls (Figure 3-3) and initiates the MENU Mode, which enables access to an extensive set of software menus.
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D 3.2 Software Menus Software menus are divided into five main menus, each with a set of sub-menus (Table 3-1). The rotary knob on the front of the E8 Controller is used to sequentially cycle through the menus and the sub-menus. Two small arrows at the bottom of the display point to the selected menu and sub-menu name, respectively.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Sub-MENU Name Points left to Selected Bus(es) INSTALLATION Points right to Selected Buss(es) Points down to Selected Sub-MENU Name Points down to Selected MENU Name MENU Names Sub-MENU Names Figure 3-4: E8 Display in MENU Mode (after first opening hinged door) 3.2.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 3.2.2 Basic Parameter Navigation, Selection, and Revision When in the USER, TIME PROGRAM, EXPERT, or GENERAL Main Menu, virtually all submenu items can be changed if the desired. Perform the following steps to access, view, and/or change menu item parameters: Parameter Change Procedure Description Examples Use Rotary Knob to navigate to desired Menu/Submenu.
GF-115-C OMM-0084_0D 4. E8 CONTROLLER MENUS AND SUB-MENUS This section provides flow-chart illustrations and tabular listings of all Menu and Sub-Menu functions. Overall menu hierarchy is shown below: 1. DISPLAY a. INSTALLATION b. HOT WATER c. HEAT CIRCUIT I d. HEAT CIRCUIT II e. SOLAR/MF 2. USER a. INSTALLATION b. HOT WATER c. HEAT CIRCUIT I d. HEAT CIRCUIT II e. SOLAR/MF 3. TIME PROGRAMS a. CIRCL TIME b. HOTW-PROG c. HTG-PROG 1 d. HTG-PROG 2 4. EXPERT a. INSTALLATION b. HOT WATER c. HEAT CIRCUIT I d.
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D 4.1 DISPLAY Menu The DISPLAY Menu contains an INSTALLATION, HOT WATER, HEATING (HTG) CIRCUIT 1 & 2 and a SOLAR M/F Sub-Menu as shown in Figure 4-1 and in Table 4-1.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D NOTE All DISPLAY Menu & Sub-Menu functions are READ ONLY and cannot be changed. Temperature readings shown are in °F. Table 4-1: DISPLAY Menu Listing FUNCTION DESCRIPTION REMARKS INSTALLATION Sub-Menu T-OUTSIDE Outside air temperature Displayed only if outside air sensor is installed.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 4-1: DISPLAY Menu Listing (Continued) FUNCTION DESCRIPTION REMARKS HTG CIRCUIT 1 Sub-Menu T-ROOM DES A Not Applicable T-ROOM Current room air temperature. Only if indoor sensor is connected HUMIDITY Room humidity (%). Only if humidity sensor is installed and parameters set for heating circuit.
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D 4.2 USER Menu The USER Menu (Figure 4-2) contains the same Sub-Menus as the DISPLAY Menu. However, the USER Menu items are not “Read Only” and therefore can be changed. The SubMenu functions in the USER Menu also differ from those contained in the DISPLAY Menu. Tabular listings for the USER Menu items are provided in Table 4-2.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 4-2: USER Menu Listing FUNCTION DESCRIPTION ENTRY RANGE DEFAULT 12 languages are available. ENGLISH -20 to 20 00 See DESCRIPTION Column ---- 50°F - 158°F 140°F INSTALLATION Sub-Menu LANGUAGE Selects display language. CONTRAST Adjusts display contrast Sets the day of the week or the sensor temperature (°F) to appear in the display when the swing-down panel is closed.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 4-2: USER Menu Listing (Continued) FUNCTION DESCRIPTION ENTRY RANGE DEFAULT - - - -, Standby, Auto 1, Auto 2, Day, Night ---- HTG CIRCUIT 1 Sub-Menu MODE Displays Timer Mode for Boiler T-ROOM DES 1 Not Applicable T-ROOM DES 2 Not Applicable T-ROOM DES 3 Not Applicable T-REDUCED Not Applicable T-ABSENCE Not Applicable T-LIMIT DAY Applies during day-time heating periods - - - -, -23.0°F–104.
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D 4.3 TIME PROGRAM Menu and Sun-Menus Day and Time-related functions can be set using the TIME PROGRAM Menu and its associated Sub-Menus. However, at the present time, none of the Sub-Menus and functions in the TIME PROGRAM Menu are being utilized. This menu is shown in Figure 4-3. Refer to Section 8 for additional information on these Menu and Sub-Menu functions.
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D 4.4 EXPERT Menu and Sub-Menus The EXPERT Menu contains the following Sub-Menus: INSTALLATION, HOT WATER, HEAT CIRCUIT 1, HEAT CIRCUIT 2 and SOLAR M/F as shown in Figure 4-4. As this figure shows, the EXPERT Menu includes an extensive list of Sub-Menu functions, particularly in the INSTALLATION Sub-Menu. Tabular listings for the EXPERT Menu and Sub-Menu items are provided in Table 4-3. Whenever “CODE NO.
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D CONTINUED FROM SHEET 1 EXPERT HOT-WATER DHW RELIEF PARALLEL T-BOILER DHW HYST DHW DHW FOLLOWUP THERM INPUT WALL HUNG LOAD THROUGH RETURN HTG CIRCUIT 1 HC FUNCTION PUMP MODE MIXER OPEN MIXER CLOSE MAX T-FLOW MIN T-FLOW T-FROST PROT OUT-TEMP-DEL SLOPE OFFSET B-HEAT SINK RETURN HTG CIRCUIT 2 HC FUNCTION PUMP MODE MAX T-FLOW MIN T-FLOW T-FROST PROT OUT-TEMP-DEL B-HEAT SINK RETURN SOLAR M/F RELAY FUNC 1 T-MF 1 SETP MF1
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D NOTE Whenever “CODE NO.” is displayed, it indicates that the valid password must be entered. This is accomplished by entering code 0000 (four zeros) by pressing the Program Key four (4) times. Table 4-3: EXPERT Menu Listing FUNCTION DESCRIPTION ENTRY RANGE DEFAULT 0000 - 9999 0000 01 - 08 DO NOT CHANGE INSTALLATION Sub-Menu CODE-NO Permits entry of valid Code No.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 4-3: EXPERT Menu Listing (Continued) FUNCTION DESCRIPTION ENTRY RANGE DEFAULT INSTALLATION Sub-Menu (Continued) HYSTERESIS Not Applicable FOUND MODULS Displays the number of heat modules available for service. Display CAP/MODULE Displays the maximum Kw output of each heat module.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 4-3: EXPERT Menu Listing (Continued) ENTRY DESCRIPTION RANGE FUNCTION DEFAULT INSTALLATION Sub-Menu (Continued) SEQU CHANGE Sequence change mode 01 – 06 06 SEQ SW TIME Time to sequence change (hours) 10 – 800 200 LOCK TIME Not Applicable 00 min – 30 min 00 HYST BURNER2 Not Applicable – HS COOL-FCT Not Applicable T-HS COOL Not Applicable Identification of Boiler Type being used: 00 = No Boiler
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 4-3: EXPERT Menu Listing (Continued) FUNCTION DESCRIPTION ENTRY RANGE DEFAULT HEAT CIRCUIT 1 & 2 Sub-Menus The Sub-Menu Functions for HEAT CIRCUIT 1 & HEAT CIRCUIT 2 are identical, except for the MIXER OPEN & MIXER CLOSE Functions which apply only to HEAT CIRCUIT 1. The Function values in this Sub-Menu level will change, depending on the Heat Circuit Function (HC FUNCTION) selected.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 4-3: EXPERT Menu Listing (Continued) FUNCTION DESCRIPTION SOLAR M/F Sub-Menu MF (1-4) FUNCTION Not Applicable MF (1-4) SET TEMP Not Applicable MF (1-4) HYST (1-4) Not Applicable F15 FUNCTION F15 Function 00 = Room Sensor for Heating Circuit 2 01 = 0 – 10V iInput 02 = Light sensor RETURN Press Program Key to exit SOLAR M/F Sub-Menu. ENTRY RANGE DEFAULT 00 -02 00 4.4.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 4.5 EXPERT HS Menu (Not Used) (Not applicable to Modulex boilers) 4.6 GENERAL Menu The GENERAL Menu contains a DATE/TIME Menu and a SERVICE Menu. 4.6.1 DATE / TIME Menu This Sub-Menu is used to set the time, date, holiday (vacation) schedule and, where necessary, enter clock change settings (daylight savings time, etc). The DATE/TIME menu functions are illustrated and described in Figure 4-5 and Table 4-5.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 4-5: DATE / TIME Menu Listing FUNCTION DESCRIPTION ENTRY RANGE TIME – DATE Sub-Menu This Sub-Menu is used to set the time, date, holiday schedule and, where necessary, enter clock change settings (daylight savings time, etc). TIME Set current time (min.
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D 4.6.2 SERVICE Menu The SERVICE Menu contains all the test and diagnostic functions/values required for Customer Service Engineers to troubleshoot the equipment in a timely manner. The SERVICE Menu items are illustrated and described in Figure 4-6 and Table 4-6 respectively. Some of the functions in this Sub-Menu require a valid Code No. (password) to be entered, prior to accessing/changing Function values.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 4-6: SERVICE Menu Listing FUNCTION DESCRIPTION REMARKS RELAY TEST Sub-Menu This Sub-Menu is used to check the status of the relays contained in the Controlller. These relays are numbered 00 through 11 and are defined as shown below. CODE NO. Entry is required to access these relays. RELAY NO.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 4-6: SERVICE Menu Listing (Continued) FUNCTION DESCRIPTION REMARKS SENSOR TEST Sub-Menu Flow temperature heating circuit 1 or temperature F11 multifunction 1 F12 Hot water temperature lower or temperature multifunction 2 F13 Solid fuel boiler temperature or collector 2 or temperature multifunction 3 F14 Collector 1 temperature or temperature multifunction 4 F15; Light; 0-10V I Room temperature heating ci
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 4.7 E8 Controller Initial Startup Initial startup of the Modulex Controller requires a number of one-time entries to be made in the initial INSTALLATION Menu that appears in the display when the E8 controller door is first opened. Table 4-7 on the next page lists the description, entry range, and default entry for all parameter. Instructions for entry into this menu is shown below.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 4-7: INSTALLATION Menu Listing PARAMETERS DESCRIPTION ENTRY RANGE DEFAULT INSTALLATION Sub-Menu LANGUAGE Set Language TIME Set current time (min.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 4.7.1 CAP/MODULE Function (Maximum Kilowatts per Burner) When the Program Key is pressed with CAP/MODULE displayed, the display may show “SCAN”, indicating that the Controller is searching for related MODULE (BOILER) functions. Once the scan is complete, follow instructions below. CAP/MODULE Function (Setting Max. Kw per Burner) 1. Press the Program Key. The display will show CODE NO.
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D 4.7.
GF-115-C OMM-0084_0D 5. E8 OPERATING MODE: Set-up and Programming The following paragraphs provide the detailed set-up and programming procedures necessary to configure the Modulex Boiler for service operation. NOTE When performing the following operating mode set-up procedures, refer to Section 3 of this document for illustrations and descriptions of the Controller operating controls and displays. Refer to Section 6 for Controller wiring connections. 5.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Indoor/Outdoor Reset Configuration in USER Menu 1. Ensure ON/OFF switch on front of Modulex boiler is in the ON position. 2. Open controller front panel. 3. Turn the Rotary Knob clockwise to the USER menu. The first sub-menu displayed will be INSTALLATION. 4. Continue scrolling clockwise through the USER menu until the HTG CIRCUIT 1 sub-menu is displayed. 5.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 5.1.3 Viewing the Boiler Setpoint The setpoint temperature setting is viewed in the E8 controller display as shown below. Viewing the Boiler Setpoint 1. Turn the Rotary Knob to the DISPLAY menu. The first sub-menu displayed will be INSTALLATION. 2. Press the Program Key to enter the INSTALLATION sub-menu. 3. Turn Rotary Knob clockwise until T-COLL DES is displayed along with corresponding temperature reading.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 5.2.1 Wiring Connections There are NO wiring connections required for this mode. 5.2.2 Constant Setpoint Mode Configuration The Constant Setpoint Mode is enabled using functions contained in the EXPERT menu and USER menu as shown on previous page. 5.2.3 Viewing Constant Set Point The set point is viewed in the DISPLAY menu as shown below. Viewing the Constant Setpoint 1.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 5.2.4.1 Configuring HEATSLOPE Parameter The HEATSLOPE value is configured as shown in the instructions below. Configuring HEATSLOPE Parameter 1. Ensure ON/OFF switch on front of Modulex boiler is in the ON position. 2. Open controller front panel. 3. Turn the Rotary Knob clockwise to the USER menu. 4. Press Program Key to select the User submenu. The first item (sub-menu) displayed will be INSTALLATION. 5.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 5.2.4.2 Configuring MAX T-FLOW and MIN T-FLOW Parameters To enter the MAX T-FLOW and MIN T-FLOW values, see instructions below. Configuring MAX T-FLOW and MIN T-FLOW Parameters 1. Ensure ON/OFF switch on front of Modulex boiler is in the ON position. 2. Open controller front panel. 3. Turn the Rotary Knob clockwise to the EXPERT menu. The first item (sub-menu) displayed will be INSTALLATION. 4.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 5.2.4.3 Configuring MAX T-COL Parameter To enter the MAX T-COL value, see instructions below. Configuring MAX T-COLL Parameter 1. Set the ON/OFF switch on the front of the Modulex boiler to the ON position. 2. Open the swing-down hinged panel of the Controller. 3. Turn the Rotary Knob clockwise to the EXPERT menu. The first item (sub-menu) displayed will be INSTALLATION. 4.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 5.3.2 Configuring Remote Signal Source Configure the Remote Signal Source as shown in the instructions below. Configuring Remote Signal Source 1. Ensure ON/OFF switch on front of Modulex boiler is in the ON position. 2. Open Controller front panel. 3. Turn Rotary Knob clockwise to EXPERT menu.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 5.3.3 Setting the Voltage and Set Point Limits for U1/U2 and T1/T2 NOTE Ensure that steps 1 through 13 in Paragraph 5.3.2 were completed prior to performing the following steps. NOTE When scrolling through sub-menus and functions, enter required Code 0000 only when prompted to do so. Normally, Code 0000 only needs to be entered once, unless you exit and re-enter EXPERT menu.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D T1 and T2 Settings: The previous steps set the U1 and U2 voltages which will be used to scale the minimum and maximum set point levels. To set the minimum (T1) and maximum (T2) set point temperatures which correspond to the U1 and U2 voltage levels, follow instructions below. Voltage & Set Point Limits: T1 & T2 1. Turn the Rotary Knob clockwise and scroll to CURVE 11-T1. This will be the minimum set point temperature.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 5.3.5 Viewing the Set Point The set point is displayed as shown in instructions below. NOTE When viewing the set point temperature using the steps in paragraph 5.3.5, you will note that the when the voltage source is equal to 0.9 Volt, the set point temperature will drop to 41°F (9°C), thereby shutting down the boiler.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 5.4.2 Configuring the Controller for DHW With a Tank Sensor Both EXPERT and USER Menus will be used to configure the Controller for DHW production. The DISPLAY Menu will be used to display the set point. Follow instructions below to configure the controller for DHW with a tank sensor. IMPORTANT The tank sensor MUST be connected (Section 5.4.1), prior to configuring Controller for DHW operation.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 5.4.3 Setting the DHW Set Point The set point temperature is set in the USER menu as shown in instructions below. NOTE Typically, a higher water temp is needed to heat domestic hot water to its setpoint. Do this by using EXPERT / HOT WATER / T BOILER DHW. Degrees entered are added to DHW Setpoint in USER MENU. See paragraph 5.2.3. Setting the DHW Set Point 1.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 5.4.4 Displaying Temperatures Associated With DHW Functions in the DISPLAY menu are used to display the actual DHW temperature measured by the tank sensor. The swing-down hinged panel must be open to access and display these functions. 5.4.4.1 Viewing DHW Set Point and Actual DHW Temperature The DHW set point and the actual DHW temperature measured by the tank sensor are displayed as shown in the instructions below.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 5.5 DHW Operation Using an Aquastat Operation, wiring connections and Controller configuration settings for DHW heating using an aquastat are virtually identical to the procedures previously described in paragraph 5.4 for the tank sensor. Therefore, the following paragraphs describe only the differences between these two types of applications. 5.5.
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GF-115-C OMM-0084_0D 6.
Modulex E8 Controller and BCM Operations and Maintenance Manual Term Pin# II II II II II II II II II VI IV IV (1) (2) (3) (4) (5) (6) (7) (8) (9+10) (1+2) (1) (2) IV (3) IV (4) GF-115-C OMM-0084_0D Mains Terminal Assignments Function Neutral conductor, mains Power supply, unit Power supply, relay A1 = Secondary Pump, heating circuit 1 A2 = Secondary Pump, heating circuit 2 A3 = Cylinder charging pump A4 = Mixer motor heating circuit 2 on A5 = Mixer motor heating circuit 2 to A6 = Burner stage 1/H
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D 6.1 Power Terminal Assignments (Continued) Plug 4 [IV] IMPORTANT THE PRIMARY PUMP (COLLECTOR PUMP 2) MUST BE WIRED TO RELAY A10. 6.2 Sensor Terminal Assignments Connector 7 [VII] Connector 1 [I] Connector 5 [V] PR1: 11/30/12 AERCO International, Inc. • 100 Oritani Dr.
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D 6.2 Sensor Terminal Assignments (Continued) Connector 8 [VIII] => PT 1000 Sensor Connector 3 [III] Connector 9 [IX] PR1: 11/30/12 AERCO International, Inc. • 100 Oritani Dr.
GF-115-C OMM-0084_0D 7. BOILER COMMUNICATIONS MODULE (BCM) When installed and enabled, the BCM enhances the range of control functions offered by the Modulex Boilers. These additional control functions include the following: • BCM provides a fault relay which energizes when any fault condition occurs in the Modulex Boiler. • BCM serves as a Back-up Controller in the event that the primary E8 Controller fails. • BCM can be selected as the Primary Controller instead of the E8.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual Reset Switch DL1 (Yellow) DL2 (Red) OMM-0084_0D DL3 (Green) Input Communications (Modbus/Ebus) Enable/Disable Switch (I/O) Output Communications (Ebus) SW1 Switch Figure 7-2: Boiler Communications Module (BCM) Features Boiler Communications Module (BCM) Features and Functions Feature Function Enable/Disable Switch (I/0) Two-position rocker switch enables the BCM to act as a BackUp Controller when placed in the ON (I) posit
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D 7.2 BCM Fault Relay The BCM Fault Relay is activated (energized) when a fault condition occurs in the Modulex Boiler. When activated, the Fault Relay provides contact closure across pins 3 and 4 of connector Y4 on the BCM board. In addition, the red LED on the BCM board will light continuously. 7.2.
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D 7.3 BCM Configured as Back-Up Controller When the BCM is configured as the Back-Up Controller for the E8, it will assume control of the Modulex Boiler if the E8 fails. In the event of an E8 Controller failure, the BCM will operate the Modulex Boiler in the Constant Setpoint Mode (default setpoint = 180°F [82°C]).
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual RESISTOR SEE CHART OPEN 7 6 5 4 3 2 1 Y2 Y2 SETPOINT 180°F 100K OHMS 160°F 47K OHMS 140°F 22K OHMS 120°F 10K OHMS 100°F SHORT OMM-0084_0D 80°F Y4 Y3 I 0 Y1 A1 SW1 Figure 7-5: Installing Resistor to Change Default Setpoint 7.4 BCM Configured as Primary Controller Utilizing Modbus NOTE: When the BCM is configured as the primary controller, the E8 will display the fault code “E200”.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D In the event that the external control signal from the Master BMS II or ACS, EMS, or BAS is lost, the BCM will assume control of the Modulex Boilers, if enabled. When this occurs, the BCM will maintain the boiler at a constant setpoint based on the resistor installed between terminals 6 and 7 of connector Y2 (see Figure 7-5). In addition, the BCM Fault Relay will be activated and the red Fault LED (DL2) will light. 7.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 7.4.3 Disconnecting the E8 from the E-Bus on the BCM Board. NOTE When the BCM is configured as the primary controller, the E8 will display the fault code “E200”. If the BCM was retrofitted in the field utilizing Technical Service Bulletin 2007-07, refer to this bulletin and disconnect CBL 24 from Connector VII on the E8 Controller.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Figure 7-8: Location of 2-Position and 3-Position Switches 7.4.4 AERCO BMS II/ACS Master to BCM Slave Wiring Connections. The AERCO BMS II/ACS contains a RS232 port for connection to an EMS/BAS or personal computer. In addition, the BMS II/ACS contains a RS485 port for connection to the BCM’s Modbus input. 7.4.
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D 7.5.2 BCM Controller Terminating Resistor and Bias BCMs can function only as Slave devices on a Modbus Network. Since the Slaves are connected in a “Daisy-Chain” configuration, the terminating resistor must be enabled only in the last BCM Controller in the chain. Enabling the terminating resistor is accomplished by positioning jumper JP1 as shown in Figure 7-9 only on the BCM Board contained in the last BCM Controller.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 7.6 Modbus Network Wiring Diagram A “Sample” Modbus Network wiring diagram for an AERCO BMS II/ACS Master controlling BCM Slaves is shown in Figure 7-10. Activate the terminating resistor in the last BCM on the daisychain loop. DO NOT install the 1K bias resistor. Instead, activate the two bias DIP switches in the BMS II/ACS. Refer to GF-124, Figure 2-6 for the location of these switches.
PR1: 11/30/12 RS232 PORT SHLD (TERM 3) 485 B + 485 A (PART OF BCM CONN. Y2) (PART OF BCM CONN. Y2) TO OTHER NETWORK BOILER SLAVES (3 - 9) + BCM Y2-2 – MODBUS “A” (-) Y2-1 – MODBUS “B” (+) MODULEX BOILER SLAVE #2 + BCM Y2-2 – MODBUS “A” (-) Y2-1 – MODBUS “B” (+) MODULEX BOILER SLAVE #1 Operations and Maintenance Manual AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526- 0288 Figure7-10: 7-10.
PR1: 11/30/12 (PART OF BCM CONN. Y2) 3. THE LAST BCM SLAVE ON THE RS485 LOOP MUST HAVE ITS TERMINATION RESISTOR ENABLED. ALSO, A 1K OHM BIAS RESISTOR MAY BE REQUIRED. CHECK WITH THE EMS MANUFACTURER. 2. IF EMS MASTER CONTAINS ONLY A RS232 PORT, A RS232-TO-RS485 CONVERTER WILL BE REQUIRED. 1. IF EMS MASTER CONTAINS A 4-WIRE RS485 PORT, TIE THE TWO POSITIVE (+) AND NEGATIVE (-) LEADS TOGETHER AS SHOWN IN DETAIL “A” NOTES: (PART OF BCM CONN.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 7.7 Modbus Software Set-Up The following paragraphs provide the information and procedures necessary to configure the Boiler Communications Modules (BCMs) to operate on a Modbus Network. NOTE The following paragraphs assume that between 1 and 9 Modulex Boilers are being controlled on the Modbus Network. 7.7.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 7.7.2 Monitoring and Configuration Only For monitoring and configuration only, set the 3-position switch to position II when the E8 is controlling the boiler. The boiler operation can be monitored via the Modbus terminals. 7.7.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D outside the BMS II/ACS, but boilers that fire with no flow will trip out on internal high temperature limit controls. The following example briefly explains the operational sequence for a boiler plant consisting of multiple Modulex Boilers controlled by a BMS II or ACS: 7.8.
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GF-115-C OMM-0084_0D 8. E8 CONTROLLER MENU LISTINGS 8.1 DISPLAY Menu The DISPLAY Menu contains an INSTALLATION, HOT WATER, HEATING (HTG) CIRCUIT 1 & 2 and a SOLAR HEATING Sub-Menu. The sub-menu functions associated with each of these items are listed in Table 8-1. NOTE All DISPLAY area menus are READ ONLY and cannot be changed. Temperature readings are in °F.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 8-1: DISPLAY Menu Sub-Menus and Parameters (Continued) FUNCTION DESCRIPTION REMARKS HOT WATER Sub-Menu T-DHW RATED DHW set point temperature Based on heating program and operating mode. Actual DHW set point as set in the USER/HOT WATER menu.
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D 8.2 USER Menu The USER Menu contains exactly the same sub-menus as the DISPLAY Menu. However, the USER Menu items are not “Read Only” and therefore can be changed if desired. Table 8-2: USER Menu Sub-Menus and Parameters FUNCTION DESCRIPTION ENTRY RANGE DEFAULT 12 languages are available. ENGLISH -20 to 20 00 See DESCRIPTION Column ---- INSTALLATION Sub-Menu LANGUAGE Selects display language.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 8-2: USER Menu Sub-Menus and Parameters (Continued) FUNCTION DESCRIPTION ENTRY RANGE DEFAULT - - - -, Standby, Auto 1, Auto 2, Day, Night ---- HTG CIRCUIT 1 Sub-Menu MODE Displays Timer Mode for Boiler T-ROOM DES 1 Room temperature setting for first enable tiime. 41.0°F – 104.0°F 68.0° F T-ROOM DES 2 Room temperature setting for second enable tiime. 41.0°F – 104.0°F 68.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 8.3 TIME PROGRAM Menu All time-related functions can be set using the TIME PROGRAM Menu and its associated submenus.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 8-3: TIME PROGRAM Menu Sub-Menus and Parameters (Continued) FUNCTION ENTRY RANGE DEFAULT MONDAY View or change the pump ON – OFF times for Monday. Press the Program Key to view current settings. Turn Rotary Knob to change displayed ON or OFF time if required. Press Program Key to store displayed ON or OFF time and sequence the display to the next function.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 8-3: TIME PROGRAM Menu Sub-Menus and Parameters (Continued) FUNCTION DESCRIPTION ENTRY RANGE DEFAULT HTG – PROG 1 Sub-Menu The HTG-PROG 1 (Heating Program 1) SubMenu is used to set the ON-OFF times for Heating Circuit 1 The procedures for viewing/changing ON-OFF times are identical to those previously described for the CIRCL TIME Sub-Menu, except they apply to the HTG PROGRAM 1.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 8.4 EXPERT Menu The EXPERT Menu includes the same sub-menus as the USER Menu described in subsection A.2. However, in order to change any settings, the valid Code No. (password) must be entered. Whenever “CODE NO.” is displayed, it indicates that the valid password must be entered. This is accomplished by entering code 0000 (4 zeros) by pressing the Program Key 4 times.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 8-4: EXPERT Menu Sub-Menus and Parameters (Continued) FUNCTION DESCRIPTION ENTRY RANGE DEFAULT 5K - 20K (N/A) 5.0K (N/A) INSTALLATION Sub-Menu (Continued) HYSTERESIS Dynamic Switching hysteresis stage 1. (Not Applicable) FOUND MODULS Display of heat generators automatically reported via BUS with BUS ID. Displays the number of heat modules available for service.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 8-4: EXPERT Menu Sub-Menus and Parameters (Continued) FUNCTION DESCRIPTION ENTRY RANGE DEFAULT INSTALLATION Sub-Menu (Continued) SEQU CHANGE Sequence change mode 01 - 06 06 SEQ SW TIME Time to sequence change (seconds) 10 - 800 200 LOCK TIME Min. delay time after switching ON or with switching HS 00 min - 30 min 00 HYST BURNER2 Solid fuel integration: hysteresiys for charging pump 2K - 20K 2.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 8-4: EXPERT Menu Sub-Menus and Parameters (Continued) FUNCTION DESCRIPTION ENTRY RANGE DEFAULT HEAT CIRCUIT 1 & 2 Sub-Menus The Sub-Menu Functions for HEAT CIRCUIT 1 & HEAT CIRCUIT 2 are identical. The Function values in this Sub-Menu level will change, depending on the Heat Circuit Function (HC FUNCTION) selected.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 8-4: EXPERT Menu Sub-Menus and Parameters (Continued) FUNCTION DESCRIPTION ENTRY RANGE DEFAULT 00 = OFF 01 = ON 01 (ON) 00, 01, 02, 03, 05, 06 & 20-26 00 (No Function) HEAT CIRCUIT 1 & 2 Sub-Menus (Continued) B-HEAT SINK Circuit Enable Press Program Key to exit HEAT CIRCUIT 1 (or 2) Sub-Menu. SOLAR M/F Sub-Menu RETURN Multi-Function (MF) Relay Functions.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 8.5 GENERAL Menu The GENERAL Menu contains a DATE/TIME Sub-Menu and a SERVICE Sub-Menu. 8.5.1 DATE / TIME Sub-Menu This Sub-Menu is used to set the time, date, holiday schedule and, where necessary, enter clock change settings (daylight savings time, etc.). NOTE All items in the following DATE/TIME Menu must be entered in sequence. Press the Program Key to step through the menu functions.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 8.5.2 SERVICE Sub-Menu The SERVICE Menu contains all the test and diagnostic functions/values required for Customer Service Engineers to troubleshoot the equipment in a timely manner. Some of the functions in this sub-menu require a valid Code No. (password) to be entered, prior to accessing/changing Function values. When prompted by a “CODE NO.” display, enter 0000 (four zeros) by pressing the Program Key four times.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 8-6: GENERAL Menu / SERVICE Sub-Menus and Parameters (Continued) FUNCTION DESCRIPTION REMARKS SENSOR TEST Sub-Menu F11 Flow temperature heating circuit 1 or temperature multifunction 1 F12 Hot water temperature lower or temperature multifunction 2 F13 Solid fuel boiler temperature or collector 2 or temperature multifunction 3 F14 Collector 1 temperature or temperature multifunction 4 F15; Room temperatu
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GF-115-C OMM-0084_0D 9. BCM MODBUS AND ADDRESS ASSIGNMENTS 9.1 BCM Modbus Communication & Support Requirements The Modbus communication support requirements incorporated in the BCM are as follows: 9.1.1 Function Codes The BCM supports the Modbus Function Codes SHOWN IN Table 9-1. Table 9-1: Supported Modbus Function Codes FUNCTION CODE DESCRIPTION 03 Read up to 8 contiguous Holding Registers 04 Read up to 8 contiguous Address Registers 06 Write a single 16 bit Register 9.1.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual 9.2 OMM-0084_0D BCM Controller Standard Holding Register Assignments 9.2.1 BCM Controller Standard Input Register Assignments The BCM Controller has only two Read Only Input Register addresses as shown in Table 9-3.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 9-4: BCM Standard Holding Register Address Mapping Modbus Data Address Menu Item Units and Range Default/(Comments) CONTROL REGISTERS 1 AERCO BMS II/ACS Requested Modulation Level % (0 to 100) (Read/Write) A value other than 0 requests Run mode and supersedes the value set for Max Modulation Level (address 0x03F9) 1017 Maximum Modulation Level % (0 to 100) (Value x 2) (Read/Write) 100° (50%) 1004 Req
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 9-4: BCM Standard Holding Register Address Mapping (Continued) Modbus Data Address Menu Item Units and Range Default/(Comments) CONTROL REGISTERS (Continued) Check Mode, Inserted burner control 1041 Flags (0 – 0xFF) Bit 0: BMM #0 to Bit 7: BMM #7 (Read/Write) Bit 0 (BMM #0) is automatically set at Check Mode start OPERATING DATA REGISTERS 0 Error Code 0 – 0xFFFF LSB: Error Code MSB: Identification code
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 9-4: BCM Standard Holding Register Address Mapping (Continued) Modbus Data Address Menu Item Units and Range Default/(Comments) OPERATING DATA REGISTERS (Continued) 1020 Operating Mode enum (0, 1, 2, 3, 6) 0: Standby 1: Space Heating 2: DHW 3: Check 6: Test Linked BMM Flags (0 -255) Bit 0: BMM #0 to Bit 7: BMM #7 Inserted BMM Flags (0 -255) Bit 0: BMM #0 to Bit 7: BMM #7 BMM in Check Mode Flags (0 -25
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 9-4: BCM Standard Holding Register Address Mapping (Continued) Modbus Data Address Menu Item Units and Range Default/(Comm ents) OPERATING DATA REGISTERS (Continued) 2n10 BMM #0 Capacity (n = 0 – 7) 2n11 BMM #n Configuration (n = 0 – 7) Flag (0, 1) 0: Space Heating Only 1: Space Heating and DHW BMM #n Operating Flags (n = 0 – 7) Flags (0-255) Bit 3: Flame detected Bit 4: Check mode Bit 6: Pump status Bit
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 9-4: BCM Standard Holding Register Address Mapping (Continued) Modbus Data Address Menu Item Units and Range Default/Comments 3007 Pump Modulation Output @ Minimum Burner Level 0 – 10V (Value x 10) (Read/Write) 3V 3008 Pump Modulation Output @ Maximum Burner Level 0 – 10V (Value x 10) (Read/Write) 10V 3009 Burner Minimum Modulation Level 0 – 100% (Read/Write) 35% 3010 Water Δ Temp.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 9-4: BCM Standard Holding Register Address Mapping (Continued) Modbus Data Address Menu Item Units and Range Default/(Comments) TEST REGISTER (Continued) Flags (0 - 0x1F80) bit 0: bit 1: bit 2: bit 7: 3100 Digital Inputs Status [0, 1] bit 8: bit 9: bit 10: bit 11: bit 12: bit 13: bit 14: bit 15: eBUS RX eBUS-1 RX eBUS -1 detect (true, false) Room Stat (open, close) 0, not used RESET by Low Voltage Detector
GF-115-C OMM-0084_0D 10. E8, BCM, AND BMM FAULT CODES This section provides tables for identifying faults (with fault troubleshooting tips) and describes the procedures required to clear a displayed fault code after the cause of the fault has been corrected. Fault codes are displayed in the upper right area of the LCD display on the E8 Controller as shown in Figure 10-1.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D 10.1 Processing and Clearing Fault Codes When a fault occurs, the appropriate fault code will be displayed along with a “Flashing Triangle”. To process and clear the fault, proceed as follows: NOTE If the cause of the fault has not been corrected, the displayed Fault Code will reappear after performing the following steps. Processing and Clearing a Fault Code 1. Open the hinged cover on the controller. 2.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual 10.2 OMM-0084_0D Fault Codes and Descriptions Fault codes are displayed in the E8 Controller display. Use Table 10-1 below to determine the actual fault code. There are codes for three different devices as follows: • E8 Controller: These are divided into four basic categories: PCB Element Faults, System Manager Faults, Communication Faults, and Internal Faults. These fault codes are shown in Table 10-2.
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D 10.2.1 E8 Controller Fault Codes The table below lists the fault codes and fault descriptions associated with the E8 Controller.
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D Table 10-2: E8 Controller Fault Codes (Continued) FAULT CODE FAULT DESCRIPTION Communication Fault E8: Address 0 and 1 on BUS. IDs BUS 0 and 1 may not bee used simultaneously E8: BUS ID used.
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D 10.2.2 BCM (Boiler Communications Module) Fault Codes The table below shows how to interpret the displayed fault code, while Table 10-3, on the next page, shows a description of the fault and troubleshooting tips associated with the BCM.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 10-3: BCM Fault Codes CODE DESCRIPTION EFFECT CORRECTION RESET 17 Boiler Pipe is frozen. FlowSensor temp. is 36°F or less. Ignition is inhibited. Pump runs for 5 min at max speed. Carefully defrost boiler AUTOMATIC - when FlowSensor is greater than 41°F. 18 Maximum Δtemperature protection.
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D 10.2.3 BMM (Burner Management Module) Fault Codes The table below lists the fault codes and troubleshooting tips associated with the BMM. Table 10-4: BMM Fault Codes CODE 1 DESCRIPTION High Limit (STB) Thermostat activated EFFECT All burners turned OFF and Pump ON at maximum speed. CORRECTION RESET MANUAL - push reset switch Check FlowSensor thermal when connection to boiler. temperature goes below limit.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 10-4: BMM Fault Codes (Continued) CODE DESCRIPTION EFFECT 14 Return Sensor fault All burners turned OFF. 15 Maximum Δtemperature protection. Flow temperature Return Temperature > Water Δ-Temp Protection + 50°F All burners turned OFF and Pump ON at maximum speed. 16 Boiler Pipe is frozen. FlowSensor temperature is 36°F or less. 20 Flame signal detected after burner is OFF.
Modulex E8 Controller and BCM GF-115-C Operations and Maintenance Manual OMM-0084_0D Table 10-4: BMM Fault Codes (Continued) CODE DESCRIPTION EFFECT CORRECTION RESET 24 Ignition retry after 60 Fan speed out of second delay control: It and failure doesn't reach remains until pre-purge speed we have a within 30 successful seconds. burner operation. Check fan wiring. AUTOMATIC/MANUAL 26 Fan speed out of control: It doesn't stop Ignition is within 30 inhibited. seconds after turned OFF.
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D NOTES: PR1: 11/30/12 AERCO International, Inc. • 100 Oritani Dr.
Modulex E8 Controller and BCM Operations and Maintenance Manual GF-115-C OMM-0084_0D © AERCO International, Inc., 2008 PR1: 11/30/12 AERCO International, Inc. • 100 Oritani Dr.
