TRIAD Boiler Systems, Inc. Series 8900 SH Space Heating Control Panel Operation and Installation Manual TRIAD Boiler Systems, Inc. West Chicago, IL 60185 Phone: 630-562-2700 Fax: 630-562-2800 www.triadboiler.com Printed in USA.
Series 8900SH Control Panel Operation And Installation Manual TABLE OF CONTENTS Section Introduction 1 Sequence of Operation 2 Entry Codes 3 Sensor Calibration 4 Sensor Troubleshooting 5 Monitoring Codes 6 Error Codes 7 Explanation of Entry Codes 8 Fine Tuning the Heating System 9 Troubleshooting 10
Series 8900SH Control Panel Operation And Installation Manual SECTION 1: INTRODUCTION This manual explains the operation, installation and control of TRIAD Boilers using the Series 8900 Microprocessor Control Panel. This manual provides information needed to operate the panel and to fine-tune the boiler system depending on the requirements of the structure that requires heating.
Series 8900SH Control Panel Operation And Installation Manual terminals of each pair should be connected to the same terminal in each boiler control center. Follow the drawing and wiring information carefully! KEYPAD WITH ENTRY PROCEDURES All functions of the Control Panel are activated through the use of two-digit Entry Codes via a simple keypad, which operates as follows: 1 4 7 ∗ 1. 2. 3. 4. 2 5 8 0 3 6 9 # Press the appropriate two digit Entry Code.
Series 8900SH Control Panel Operation And Installation Manual In the event of power loss or damage to the control panel the boilers will revert to self control. At that point each boiler will cycle on and off according to its high limit control. TRIAD recommends that in this situation the high limits be set at approximately 180°F.
Series 8900SH Control Panel Operation And Installation Manual WIRING DIAGRAM Section 1 Introduction And Specifications
Series 8900SH Control Panel Operation And Installation Manual OUTDOOR AND RETURN WATER LINE SENSORS: Section 1 Introduction And Specifications
Series 8900SH Control Panel Operation And Installation Manual SERIES 8900SH SPECIFICATIONS: Input Voltage 9.8 vac, 50/60 Hz, max input 35 vac with transient/surge protection Avg. Power Consumption 3VA Battery Protected Memory 8K RAM CPU Industry standard Z80, 4MHz Time Clock Internal crystal based clock Operating System Memory 8K EPROM Serial Interface 1200 Baud standard TTL signal level.
Series 8900SH Control Panel Operation And Installation Manual GLOSSARY: Entry Codes: The set of two digit numbers that allow the operator to interact with the control panel. Error Code: A code shown on the display that indicates a problem exists either in the sensors or in the computer itself. Fine Tuning: Utilizing certain codes concerned with the boiler run time and the boiler staging to carefully "size" the output to the building to obtain the highest efficiency possible.
Series 8900SH Control Panel Operation And Installation Manual LIMITED FIVE -YEAR FULL TERM WARRANTY The Manufacturer warrants the equipment described as the Series 8900 Control Panel to be free from defects in material or workmanship under normal use and service.
Series 8900SH Control Panel Operation And Installation Manual SECTION 2: SEQUENCE OF OPERATION All functions of the Control Panel are activated through the use of two-digit Entry Codes that provide instruction to the panel. These codes are explained in more detail in Sections 3 and 8.
Series 8900SH Control Panel Operation And Installation Manual If the outside temperature continues to drop, then the calculated Reset Ratio (code 23) will be activated. More heat will be required to maintain the building temperature. To determine how much more, the control panel monitors (when in Automatic mode) the outdoor air temperature, the current Return Water Line temperature, the design return water temperature, and the design outdoor temperature.
Series 8900SH Control Panel Operation And Installation Manual SECTION 3: ENTRY CODES The control panel is operated by Entry Codes, which are simple two digit numbers that provide the panel instructions. However, before entering any codes, you should become familiar with the features of the control panel. The 8900SH has a keypad and a set of 6 display LED’s.
Series 8900SH Control Panel Operation And Installation Manual 69 This code displays the month and year. Press 69, then enter Month, 1 to 12, and the year, 01, 02, 03, etc. Then press #. 20 This code starts the sequence for the 20 codes. 21 This code stores the outside air temperature at which the heating system cycles off and on. While the system can be set anywhere between 0° F and 120° F, TRIAD recommends a setting of around 60° F.
Series 8900SH Control Panel Operation And Installation Manual Record your settings the following worksheet and keep for future reference.
Series 8900SH Control Panel Operation And Installation Manual SECTION 4: SENSOR CALIBRATION This section will deal with the calibration of the sensors that measure both outside air temperatures and water system temperatures. Correct calibration is very important so the control panel receives the accurate information necessary to properly control the building temperature.
Series 8900SH Control Panel Operation And Installation Manual rotate the screwdriver slot on the potentiometer R26 until the temperature shown on the display matches the outside temperature. The sensor is now calibrated. Now locate the Return Water Line sensor and measure the temperature as close as possible. Then, at the control panel enter 12. The display will show what the panel believes is the Return Water Line temperature. Correct as before, turning the screwdrive slot on potentiometer R27.
Series 8900SH Control Panel Operation And Installation Manual SECTION 5: SENSOR TROUBLESHOOTING The wiring within the control panel from the Terminal Strip For Field Connections to the sensor input terminals on the circuit board are completed at the factory. Inside the panel is a second set of wires from each sensor to the “Terminal Strip For Field Connections” that is generally completed by the electrical contractor.
Series 8900SH Control Panel Operation And Installation Manual SECTION 6: MONITORING CODES Monitoring codes display the information programmed into the control panel, such as what temperatures it was asked to maintain, what temperature setbacks it was instructed to use, and any other customized settings. The difference between Monitoring Codes and Entry Codes is that Entry Codes allow us to enter items such as the time, dates, setback, etc.
Series 8900SH Control Panel Operation And Installation Manual 90 This code, and the ones that follow, are all time clocks, providing elapsed running time since the boilers were originally installed. Press Code 90 to start the display. 91 This code allows you to pick which boiler to check the elapsed time on. To view boiler # 5 enter 91, and then 5. Then the panel will automatically go to code 92.
Series 8900SH Control Panel Operation And Installation Manual SECTION 7: ERROR CODES Error codes are the way the control panel indicates if there are any system problems or faults. DISPLAY 230 -40 EXPLANATION If this is displayed after entering any of codes 11, 12, 73, 74, 75, or 76, then you have an Open Sensor, which means the sensor is bad, or the wire connected to the sensor input terminal is broken. See Section No. 5, Sensor Troubelshooting to test.
Series 8900SH Control Panel Operation And Installation Manual SECTION 8: ENTRY CODE DETAILS This section provides more detail to better understand the control panel Entry Codes. The Keypad is used to (i) provide instructions to the computer (ii) read, via the display LED’s, what current settings are stored in memory, and (iii) aid in monitoring the system after the settings are complete. KEYPAD WITH ENTRY PROCEDURES 1 4 7 ∗ 1. 2. 3. 4. 2 5 8 0 3 6 9 # Press the appropriate two digit Entry Code.
Series 8900SH Control Panel Operation And Installation Manual ENTRY CODE 22: MINIMUM RETURN WATER TEMPERATURE SETTING PRESS 2 + 2 = ENTRY CODE ENTER YOUR CHOICE PRESS # 1 0 0 = SAVE KEY FOR A MINIMUM RETURN WATER TEMPERATURE SETTING OF 100°F. THE AVAILABLE RANGE IS + 50°F to + 190°F This code allows the panel to set and monitor a minimum allowable boiler system Return Water Line temperature.
Series 8900SH Control Panel Operation And Installation Manual every 1°F the outside temperature drops, the Return Water Line temperature is increased 1°F. If the ratio is set at 1.50, the Return Water Line will increase 1.5°F for every 1°F drop in outside temperature. THE FORMULA BELOW WILL HELP YOU DETERMINE THE INITIAL RATIO SETTING.
Series 8900SH Control Panel Operation And Installation Manual ENTRY CODE 27: DESIGN RETURN WATER TEMPERATURE SETTING PRESS 2 + 7 = ENTRY CODE ENTER YOUR CHOICE PRESS # 1 8 0 = SAVE KEY, TO SET DESIGN RETURN WATER TEMPERATURE. THE AVAILABLE TEMPERATURE RANGE IS +100°F TO +225°F This sets the Design Return Water Temperature. It is important to set it correctly because many of the panel’s calculations are based on this figure. Usually the system design engineer will have already calculated this.
Series 8900SH Control Panel Operation And Installation Manual ENTRY CODE 30 – 37: WATER TEMPERATURE SETBACK SCHEDULES PRESS 30 3 + 0 ALL 7 DAYS = ENTRY CODE FOR ALL 7 DAYS OF THE WEEK 34 THURSDAY 31 MONDAY 35 FRIDAY 32 TUESDAY 36 SATURDAY 33 WEDNESDAY 37 SUNDAY SETBACK TIME ON AND TEMPERATURE SETBACK FIRST SETBACK OFF-TIME PRESS # 1 8 0 5 = 6:00 AM, 5°F SETBACK 6 0 0 = 6:00 AM, 0°F SETBACK = SAVE KEY This code programs water temperature setback schedules for either the entir
Series 8900SH Control Panel Operation And Installation Manual days is to input the times and temperatures that will be the same for the most of the days into the 30 code, and then enter the times and temperatures that will be different into the appropriate Entry Code(s) 31 through 37. The values entered into the 30 code are saved in program memory, but a specific entry into a specific day will override the 30 code entry for that day.
Series 8900SH Control Panel Operation And Installation Manual Example 1: ENTER CODE “40” DISPLAY WILL SHOW 4 0 ENTER STAGE “1” 4 0 . ENTER A BLANK “0” 4 0 . 0 1 ENTER BOILER NO. 1 4 0 1. 0 1 PRESS # 0 0. 0 0 1 = SAVE KEY, TO HAVE BOILER #1 OPERATE AS THE FIRST STAGE. To set firing of the second boiler, enter 2 for the stage, then a 0, then a 2 for the second boiler. The display should read 40 2.02. Now press # to save that slot to memory.
Series 8900SH Control Panel Operation And Installation Manual ENTRY CODE 61: KEYBOARD LOCK - UNLOCK PRESS 6 + 1 = ENTRY CODE PRESS 6 + 6 + DISPLAY SHOWS OR PRESS # 8 + = LOCK OR UNLOCK 2 u n l l o c = SAVE KEY Code 61 prevents tampering with the entries by locking the panel. When code 61 is entered, the display will show either “loc” or “unl”. If loc is displayed, the keypad can only be used to view the settings. If the display shows unl, the settings can be changed.
Series 8900SH Control Panel Operation And Installation Manual The code allows for manual control of up to 24 stages. During normal operation, the panel controls all the boilers. Code 63 will override that to control any boiler you choose. To use this code, you must first enter 0 in code 62, then enter code 63, and then enter the boiler/stage you want to run. Remember to always press # after each entry. This code turns off when a zero is entered and turns on when the number of boilers you want is entered.
Series 8900SH Control Panel Operation And Installation Manual ENTRY CODE 67: 24 HOUR CLOCK - HOUR AND MINUTE PRESS 6 + = ENTRY CODE 7 DISPLAY SHOWS 1 8 3 0 = 6:30 PM This code allows you to set or observe the 24 hour military time clock. To set the clock, enter 67, then the hour, then the minute, then press #.
Series 8900SH Control Panel Operation And Installation Manual ENTRY CODE 81: SETBACK OVERRIDE PRESS 6 + 6 = ENTRY CODE ENTER CHOICE 0 = MINUTES OF SETBACK RANGE IS FROM 1 TO 240 MINUTES PRESS # = SAVE KEY This provides flexibility to the setback schedule. For example, a school might set back every night of the week, but occasionally have a special activity in the evenings. To warm the building, you could re-enter the code for that night and change the settings.
Series 8900SH Control Panel Operation And Installation Manual SECTION 9: FINE TUNING THE HEATING SYSTEM The key to fine tuning any boiler system is to understand the building use. A hospital, an office building, a school, and an apartment all have very different hosting needs. The following codes are used to fine tune a system’s heating output: Codes 30 to 37 - Setback Temperature. Code 21 - Outside Air Temperature Shut Down. Code 22 - Minimum Return Water Line Temperature.
Series 8900SH Control Panel Operation And Installation Manual Code 23: The next step is to use Code 23 to ensure the panel has automatic control of the Reset Ratio. Enter code 23 and input 0 to have it automatically calculated. Code 24: The next step is to use Code 24 to set the Rate of Change Factor. As explained in Section 8, the rate of change factor controls the speed at which the timer counts from 00 to 99. When 99 is reached, the panel either fires a boiler or shuts a boiler off.
Series 8900SH Control Panel Operation And Installation Manual SECTION 10: TROUBLESHOOTING THE BUILDING EXPERIENCES A POWER OUTAGE In the case of a power outage, the control panel has two built-in rechargable batteries that will power the memory for 30 days, allowing the panel to continue where it left off when power is restored. However, the boilers will not run without electricity, and the building has lost the hosting system until power is restored.
Series 8900SH Control Panel Operation And Installation Manual THE CONTROL PANEL IS DAMAGED Turn off the control panel and contact your TRIAD service contractor or TRIAD representative. THE BURNER WILL NOT COME ON DURING TESTING OF THE SYSTEM (CODE 63) _ Be sure that the control panel is calling for the boilers by: 1. Making sure that 0 has been entered in code 62 2. Making sure that 1 has been entered in code 63 3.
