- Data Brochure D 369 Zone Control 369 01/09 01/09 The Zone Control 369 is designed to control the temperature in up to six heating zones using Room Temperature Units (RTUs) or indoor sensors. The 369 allows one stage heating zones, two stage heating zones, or a combination of one stage and two stage heating zones. PID zoning logic allows for staggering and synchronization of multiple zones in order to minimize boiler short cycling.
How To Use The Data Brochure This brochure is organized into four main sections. They are: 1) Sequence of Operation, 2) Installation, 3) Control Settings, and 4) Troubleshooting. The Sequence of Operation has four subsections. We recommend reading each subsection of the Sequence of Operation, as each one contains important information on the overall operation of the control.
- 01/09 MENU FIELD The 369 has a number of menus used to monitor system status and adjust settings in the control. The current menu will be displayed in the left hand side of the display. View Menu View The View menu is used to view the outdoor temperature and zone temperatures. °F Adjust Menu There are seven separate menus used to make adjustments to the control settings and the zone settings. There is an Adjust menu for the control, and an Adjust menu for each zone.
- 01/09 Display Item Field Number Field Displays an abbreviated name of the selected item Menu Field Displays the current menu Displays the current value of the selected item View Adjust Monitor Time Schd Misc °F °C AM min hr PM sec UnOcc 1 2 Ovr Cool Zone 1 2 3 4 5 6 Status Field { Displays the current status of the control’s inputs, outputs and operation Menu Buttons Selects Menu, Items and adjusts settings Item Symbol Description Zone 1 2 3 4 5 6 Pump Displays when the system pump is in
- 01/09 Sequence of Operation Section A Section B Heating Operation Cooling Operation Page 5 - 7 Page 7 - 8 Section C Setback (UnOccupied) Page 9 - 10 Section D tN 1/2 Devices Page 11 Section A1: General Heating POWERING UP THE CONTROL When the Zone Control 369 is powered up, the control displays the control type number in the LCD for 2 seconds. Next, the software version is displayed for 2 seconds.
- 01/09 ZONE CONTROL OPERATION WITH A TEKMAR OUTDOOR RESET CONTROL The 369 can provide indoor temperature feedback to a tekmar Reset Control. When multiple Zone Controls are used, each zone control uses its Zo Out output to sequentially pass the information to the tekmar Reset Control. The ZO OUT item displayed in the view menu represents the target from the zone with the highest heat requirement.
- 01/09 Section A3: Two Stage Heating TWO STAGE HEATING In cases where a one stage heating system can not provide sufficient heat, a second stage of heat from an additional heating terminal can be provided to supplement the first stage. A two stage heating system therefore has one RTU or indoor sensor controlling two output relays: a Lo stage relay and a Hi stage relay. If an RTU is used to control a two stage heating zone, the RTU must be connected to an even tN1 terminal (i.e.
- 01/09 HEAT / COOL CHANGEOVER The changeover between heating and cooling is based on whether or not a display RTU is connected to zone 6 (tN1 6). If a display RTU is connected to zone 6 (tN1 6), the changeover between heating and cooling is selected at RTU 6. A pointer in the lower right hand display of the RTU indicates that this RTU is the designated heat / cool RTU. Heat / cool changeover can be achieved automatically or manually through the RTU.
- 01/09 Section C: UnOccupied SETBACK (UNOCCUPIED) To provide greater energy savings, the 369 can lower the building temperature at night or when the building is unoccupied. The 369 has a built-in clock which allows for heating and cooling setback capabilities. As an option, an external timer may be connected to provide a separate setback signal. When in the unoccupied mode, the UnOcc segment is displayed in the appropriate LCD.
- 01/09 SCHEDULE OVERRIDES The 369 has a number of setback overrides that are selected through the schedule (Schd) menu. A system override and a zone override are available. Any time an override is in effect, the Ovr segment is displayed in the appropriate LCD. Schd System Override (OVERRIDE) UnOcc Ovr The system overrides affect every zone and are selected in the schedule (Schd) menu of the control, remote display module (RDM), or display RTU.
- 01/09 Section D: tekmar Net 1/2 Devices TEKMAR ROOM TEMPERATURE UNIT (RTU) 060 This RTU consists of an air temperature sensor, a dial, an LED and a push button. The dial is used to set the desired occupied room temperature. The push button is used to select either a permanent unoccupied override or a temporary occupied override. Once the push button is pressed and released, a red LED is activated to indicate a permanent unoccupied override.
- 01/09 Installation CAUTION Improper installation and operation of this control could result in damage to the equipment and possibly even personal injury. It is your responsibility to ensure that this control is safely installed according to all applicable codes and standards. This electronic control is not intended for use as a primary limit control. Other controls that are intended and certified as safety limits must be placed into the control circuit. Do not open control.
- 01/09 STEP FOUR ELECTRICAL CONNECTIONS TO THE CONTROL The installer should test to confirm that no voltage is present at any of the wires. Push the control into the base and slide it down until it snaps firmly into place. 18 19 Power N L ! Powered Input Connections 115 V (ac) Power Connect the 115 V (ac) power supply to the Power L and Power N terminals (18 and 19). This connection provides power to the microprocessor and display of the control.
- 01/09 Remote Display Module (RDM) 040 (Optional) 28 29 Com tN1/2 5 View A Remote Display Module (RDM) 040 can be connected to the tekmar Net™ (tN1/2) input. Connect the Com terminal from the RDM to the Com terminal (28) on the 369. Connect the tN2 terminal from the RDM to the tN1/2 5 terminal (29) on the 369. If an RDM is connected, the 369 is only capable of operating up to 5 zones. °F Occ 1 Menu Item Note: The wires from the RDM are polarity sensitive.
- 01/09 Zone 6 (tN1 6 or Indr 6) Connect the Com terminal from the RTU to the Com terminal (28) on the 369. Connect the tN1 terminal from the RTU to the tN1 6 terminal (30) on the 369. If an indoor sensor is used, connect the two wires from the sensor to the Com and Indr 6 terminals (28 and 31). Note: If an RTU is connected to tN1 6, an indoor sensor can not be connected to Indr 6. Two Stage RTU and Indoor Sensor Connections. RTUs and indoor sensors provide indoor temperature feedback to the control.
- 01/09 ! Test The Power Supply Make sure exposed wires and bare terminals are not in contact with other wires or grounded surfaces. Turn on the power and measure the voltage between the Power L and Power N terminals (18 and 19) using an AC voltmeter. The reading should be between 103.5 and 126.5 V (ac). 18 19 Power L N V V 103.5 to 126.
- 01/09 Cleaning The control’s exterior can be cleaned using a damp cloth. Moisten cloth with water and wring out prior to wiping control. Do not use solvents or cleaning solutions. DIP Switch Settings Setback The DIP Switch settings on the control are very important and should be set to the appropriate settings prior to making any adjustments to the control through the user interface. The DIP switch settings change the items that are available to be viewed and/or adjusted in the user interface.
- 01/09 369 View Menu (1 of 1) Description Range U Se c ti LT on D Item Field SE IN R ST AD V Access Level A1 Current outdoor air temperature as measured by the outdoor sensor. This is also the default display for the control. – – –, -67 to 149°F (-55 to 65°C) A1 Current room air temperature of zone 1. – – –, -58 to 167°F (-50 to 75°C) A1 Current room air temperature of zone 2. – – –, -58 to 167°F (-50 to 75°C) A1 Current room air temperature of zone 3.
- 01/09 369 Control Adjust Menu (2 of 2) Se ct LT ion D U SE IN R ST AD V Item Field Access Level Description The time the heating zones assigned to the cooling group must be off before cooling operation is allowed. B1 COOL MOD ≠ NONE B3 A1 A1 A1 Range Actual Setting 0:10 to 3:00 hr Default = 0:30 hr Enables or disables the Optimum Start feature for the cooling system. NONE, STRT COOL MOD = CTRL Default = NONE The time required for a thermal zone valve to open.
- 01/09 369 Zone Adjust Menu (2 of 2) Se ct LT ion D U SE IN R ST A D V Item Field Access Level A1 Occ Description Desired room air temperature during an occupied period. 35 to 100°F (2 to 38°C) (Indoor sensor is present.) Default = 70°F (21°C) Desired room air temperature during an unoccupied period. C (Non-display RTU or indoor sensor is present.) DIP switch = Setback UnOcc Enables or disables the Optimum Start / Stop feature for this zone.
- 01/09 369 Monitor Menu (2 of 2) Note: To clear the recorded information in the specific item field, press and hold ▲ and ▼. Access Level Description Range U SE IN R ST AD V LT D Item Field The total number of Zn 5 relay running hours since this item was last cleared. 0 to 9999 hr The total number of Zn 6 relay running hours since this item was last cleared. 0 to 9999 hr The number of times that the microprocessor in the control has reset since this item was last cleared.
- 01/09 369 Schd (Schedule) Menu (1 of 1) Access Level Description Range The type of setback override that is in effect for all schedules. NONE, TMPY Occ Ovr, PERM Occ Ovr, TMPY UnOcc Ovr, PERM UnOcc Ovr, AWAY Default = NONE Se c ti LT on D U SE IN R ST AD V Item Field C DIP switch = Setback AWAY is available even if DIP switch ≠ Setback C Selects the same schedule for each day of the week, or a separate schedule for each day of the week.
- 01/09 369 Misc (Miscellaneous) Menu (1 of 1) Access Level Range SE IN R ST AD V Description U LT D Item Field The units of measure that all of the temperatures are to be displayed. The operating mode for the back lighting on the LCD as well as the time of keypad inactivity until the control automatically returns to the default display.
- 01/09 369 RTU Adjust Menu (1 of 1) Access Level B B Description U SE IN R ST AD V RT U RT 062 U 06 3 Se ct i LT on D Item Field The operating mode for this zone. OFF, HEAT RTU 1 to RTU 5 or RTU 6 if COOL MOD = NONE Default = HEAT The operating mode for this zone. OFF, HEAT, AUTO, COOL RTU 6 only and COOL MOD ≠ NONE Occ The desired heated room air temperature during an occupied period for this zone. Note: There is only a ±3°F (±1°C) adjustment in the LTD access level.
- 01/09 369 RTU Monitor Menu (1 of 1) Note: To clear the recorded information in the specific item field, press and hold ▲ and ▼. Description LT D U SE IN R ST AD V RT U RT 06 U 2 06 3 Item Field Access Level Range The highest outdoor air temperature recorded since this item was last cleared. -67 to 140°F (-55 to 60°C) The lowest outdoor air temperature recorded since this item was last cleared. -67 to 140°F (-55 to 60°C) The highest room air temperature recorded since this item was last cleared.
- 01/09 369 RTU Schd (Schedule) Menu (1 of 1) Access Level C C Range The type of setback override that is in effect for all schedules.
- 01/09 369 RTU Misc (Miscellaneous) Menu (1 of 1) Description Range U LT D Item Field SE IN R ST AD V RT U RT 06 U 2 06 3 Access Level °F, °C The units of measure that all of the temperatures are to be displayed. Default = °F The operating mode for the back lighting on the LCD as well as the time of keypad inactivity until the control automatically returns to the default display.
- 01/09 MAX HEAT (MAX HEAT) The Zone Control 369 has a function called Max Heat. In this mode, the 369 sets all RTU room temperature settings to 75°F (24°C) and turns on the required contacts. The RTU room setting may be adjusted to turn on or off the required zone without delay. The control continues to operate in this mode for up to 24 hours or until either the Item, Menu or Test button is pressed. To enable the Max Heat feature, use the following procedure.
- 01/09 Isolate the Problem Isolate the problem between the control and the system. Now that the sequence of operation is known and the system is sketched, is the control operating the proper pumps and valves at the correct times? Is the control receiving the correct signals from the system as to when it should be operating? Are the proper items selected in the menus of the control for the device that is to be operated? Test the Contacts Voltages & Sensors Test the contacts, voltages and sensors.
- 01/09 369 Error Messages (2 of 3) The error messages listed below for RTU 1 will be the same for RTU 2, RTU 3, RTU 4, RTU 5 and RTU 6. RTU 1 was unable to store a piece of information into its EEPROM. This error can be caused by a noisy power source. The control will display the error message and will continue to operate as normal. Pressing either the Menu or Item button will clear this error. RTU 1 was unable to read a piece of information stored in the Adjust Menu.
- 01/09 369 Error Messages (3 of 3) The error messages listed below for RTU 1 will be the same for RTU 2, RTU 3, RTU 4, RTU 5 and RTU 6. Error Displayed Description of Error The control is no longer able to read the information that is coming from RTU 1. Reconnect RTU 1 and press either the Menu or Item button to clear the error. If the RTU has been deliberately disconnected from the control, remove power from the control for 10 seconds and the repower the control in order to clear the error message.
Technical Data Zone Control 369 Six Zones Literature Control Packaged weight Enclosure Dimensions Approvals Ambient conditions — — — — — — — Power supply Relays Sensors included — — — Optional devices — D 369, U 369, A 369’s, D 001, D 070. Microprocessor PID control; This is not a safety (limit) control. 3.5 lb.
