Related Manuals for SEELEY INTERNATIONAL Braemar TH Series
Summary of Contents for SEELEY INTERNATIONAL Braemar TH Series
- Page 1 SERVICE GUIDE TH, THD & BM Series Gas Ducted Heaters Quick Reference (English) (TH, THD, BM) ECOSTAR...
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Page 2: Table Of Contents
TABLE OF CONTENTS SECTION 1 INTRODUCTION AND SAFETY Safety first......................... Heaters covered by this manual..................3 Abbreviations........................3 SECTION 2 PRODUCT SPECIFICATIONS & WIRING DIAGRAMS TH3, THD3 & BM3 Specifications..................4 2.1.1 TH3, THD3 & BM3 Wiring Diagram.................. 5 TH4 Specifications......................6 2.2.1 TH4 Wiring Diagram (No zone control)................ -
Page 3: Section 1 Introduction And Safety
Codes of Practice and Australian Standards, which offer practical guidance on these health and safety issues. Compliance with these regulations will require appropriate work practices, equipment, training and qualification of workers. Seeley International provides the following information as a guide to contractors and employees to assist in minimising risk. -
Page 4: Heaters Covered By This Manual
DO NOT Place articles on or against this appliance. DO NOT Use or store flammable materials near this appliance. Heaters covered by this manual The following Braemar heaters are covered by the manual: Braemar TH series: Braemar TH3/TH3X models Braemar TH4/TH4X models Braemar TH5/TH5X models... -
Page 5: Section 2 Product Specifications & Wiring Diagrams
Forward curved centrifugal Blower motor Blower capacitor Electrical requirements 240 V, 50 Hz, single phase Electrical connection 3 pin plug and lead, 1.8m long Gas connection 3/4" male flare connection Gas valve/voltage White Rodgers 24V Heater weight SEELEY INTERNATIONAL – SERVICE GUIDE... - Page 7 Forward curved centrifugal Blower motor Blower capacitor Electrical requirements 240 V, 50 Hz, single phase Electrical connection 3 pin plug and lead, 1.8m long Gas connection 3/4" male flare connection Gas valve/voltage White Rodgers 24V Heater weight SEELEY INTERNATIONAL – SERVICE GUIDE...
- Page 11 Forward curved centrifugal Blower motor Blower capacitor Electrical requirements 240 V, 50 Hz, single phase Electrical connection 3 pin plug and lead, 1.8m long Gas connection 3/4" male flare connection Gas valve/voltage White Rodgers 24V Heater weight SEELEY INTERNATIONAL – SERVICE GUIDE...
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Page 12: Th5 Wiring Diagram (No Zone Control)
SECTION 2 PRODUCT SPECIFICATIONS & WIRING DIAGRAMS TH5 WIRING DIAGRAM - NO ZONES Spectrolink Multi-zone To EVAP Control 24V Refig Output Heater Manual T\Stat ® TH Series Gas Heater... -
Page 13: Th5 Wiring Diagram (24V Zone Control)
SECTION 2 PRODUCT SPECIFICATIONS & WIRING DIAGRAMS TH5 WIRING DIAGRAM - 24V ZONE CONTROL Spectrolink Multi-zone To EVAP Control 24V Refig Output Heater Manual T\Stat SEELEY INTERNATIONAL – SERVICE GUIDE... -
Page 14: Th5 Wiring Diagram (240V Zone Control)
SECTION 2 PRODUCT SPECIFICATIONS & WIRING DIAGRAMS TH5 WIRING DIAGRAM - 240V ZONE CONTROL Spectrolink Multi-zone To EVAP Control 24V Refig Output Heater Manual T\Stat ® TH Series Gas Heater... -
Page 15: Section 3 System Installation Options
40 - 50 l/s for under-floor systems 55 - 70 l/s for ceiling systems If some outlets, such as those in bathrooms or small bedrooms, require less air flow a greater number of outlets could be installed. SEELEY INTERNATIONAL – SERVICE GUIDE... -
Page 16: Number Of Outlets
SECTION 3 SYSTEM INSTALLATION OPTIONS Number of outlets 3/4 STAR - recommended installed outlets - CEILING Max FS set to 15 kW 20 kW 25 kW 30 kW 20 kW 25 kW 30 kW 35 kW Extra-air Extra-air Extra-air 5 - 8 6 - 11 7 - 12 9 - 15... - Page 17 5 STAR - Minimum outlets open - CEILING 15 kW 22 kW 32 kW 22 kW 32 kW Extra-air Extra-air 5 STAR - Minimum outlets open - FLOOR 15 kW 22 kW 32 kW 22 kW 32 kW Extra-air Extra-air SEELEY INTERNATIONAL – SERVICE GUIDE...
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Page 18: Section 4 Heater Positioning
SECTION 4 HEATER POSITIONING Clearance for servicing and maintenance The heater must be positioned so that sufficient clearance is available for servicing and maintenance: 200mm above the heater, and Minimum Minimum 750mm at the room fan end of the heater, and Flue terminal clearances The heater must be positioned so the following minimum clearances from flue terminal are achieved:... -
Page 19: Return Air Grille Location
Return air relief openings There must be a clear path maintained between all outlets and the return air grille. Doors that can block this path must either be left open or have suitable relief openings added. SEELEY INTERNATIONAL – SERVICE GUIDE... -
Page 20: Section 5 Service & Troubleshooting
SECTION 5 SERVICE & TROUBLESHOOTING General checks The following points are provided as a guide to assist in diagnosing problems which may prevent correct heater operation. DISCUSS THE PROBLEM WITH THE CUSTOMER IS THE HEATER WORKING SOMETIMES OR NOT AT ALL ? IS THE HEATER NOT WORKING AS THE CUSTOMER EXPECTS ? CHECK DIAGNOSTIC CODE HISTORY: See section 8.1 to access stored diagnostic codes... -
Page 21: Heater Troubleshooting
Return air filter Check that return air filter is clean. Return air grille Check that return air grille is correctly sized - minimum sizes recommended are given in the following tables. Equivalent areas are acceptable. SEELEY INTERNATIONAL – SERVICE GUIDE... - Page 22 SECTION 5 SERVICE & TROUBLESHOOTING Return air grille minimum dimensions 3 STAR and 4 STAR heaters Heater model (kW) Minimum return air grille size (mm) Duct connection dia 3/4 STAR Without filter With filter (mm) 500 x 400 750 x 400 500 x 400 750 x 400 600 x 400...
- Page 23 Normal heater start-up - what you should see. What could stop the start-up process? What to check if the normal start-up doesn't happen. What to do when you find the cause. Detailed START-UP and RUN flowcharts follow the fault-finding section. SEELEY INTERNATIONAL – SERVICE GUIDE...
- Page 24 SECTION 5 SERVICE & TROUBLESHOOTING ® TH Series Gas Heater...
- Page 25 SECTION 5 SERVICE & TROUBLESHOOTING SEELEY INTERNATIONAL – SERVICE GUIDE...
- Page 26 SECTION 5 SERVICE & TROUBLESHOOTING ® TH Series Gas Heater...
- Page 27 SECTION 5 SERVICE & TROUBLESHOOTING SEELEY INTERNATIONAL – SERVICE GUIDE...
- Page 28 SECTION 5 SERVICE & TROUBLESHOOTING ® TH Series Gas Heater...
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Page 29: Start-Up Flowchart 3 Star
3 ignition Record fault 7. within 7 sec ? attempts done ? To lockout 1. Room fan on to speed 1 after 10 sec Diagnostic codes can only be accessed using a Braemar SCC thermostat. SEELEY INTERNATIONAL – SERVICE GUIDE... -
Page 30: Run Flowchart 3 Star
SECTION 5 SERVICE & TROUBLESHOOTING Run flowchart 3 star Check PS-low closed ? Record fault 3. Check OT1 closed ? Record fault 10. Check flame Record fault 11. present ? Check EFS OK ? Record fault 11. Check t/stat Turn off gas valve, EFS and Turn off gas valve, EFS and call for heat ? combustion fan. -
Page 31: Start-Up Flowchart 4 & 5 Star
3 ignition Record fault 7. within 7 sec ? attempts done ? To lockout 1. Room fan on to speed 1 after 10 sec Diagnostic codes can only be accessed using a Braemar SCC thermostat. SEELEY INTERNATIONAL – SERVICE GUIDE... -
Page 32: Run Flowchart 4 & 5 Star
SECTION 5 SERVICE & TROUBLESHOOTING SECTION 5 SERVICE & TROUBLESHOOTING Run flowchart 4 & 5 star Check thermistor Record fault 16. in duct ? To lockout 2. 5 star Check condensate Record fault 17. units only PS closed ? Check P -55 closed ? Record fault 3. -
Page 33: Section 6 Component Specifications
BEFORE MEASURING MOTOR WINDING RESISTANCES. RESISTANCE MEASUREMENTS MUST BE MADE WITH: • MOTOR SHAFT STATIONARY • MOTOR WIRES DISCONNECTED FROM CIRCUIT BOARD Resistance values are approximate only - resistance varies between motors, and also varies with motor temperature. SEELEY INTERNATIONAL – SERVICE GUIDE... -
Page 34: Room Fan Voltage Vs Fan Speed Setting
SECTION 6 COMPONENT SPECIFICATIONS Room fan voltage vs fan speed setting APPROXIMATE room fan voltage - Vac (Vac rms) Maximum set fan speed Displayed fan speed 70 (97) 70 (97) 70 (97) 70 (97) 73 (101) 73 (101 73 (101) 73 (101) 77 (105) 76 (105) -
Page 35: Section 7 Diagnostic Codes
Shut-down type dependent on heater operating status 5 star heaters only Safety shut down Reset not required Lockout 1 User reset from SCC, or Manual t/stat off-on-off-on, or Power off - power on Lockout 2 Reset from SCC service mode only SEELEY INTERNATIONAL – SERVICE GUIDE... - Page 36 SECTION 7 DIAGNOSTIC CODES 7.1.1 DC 1: P-100 (3 star) or P-55 (4/5 star) closed at start Description: The BSC has detected that the pressure switch connected to the EFS unit is closed at the start of an ignition sequence without the combustion fan running - '01' shown in time display. SCC Display: Potential causes Potential remedies...
- Page 37 OR • Turn manual thermostat off - on -off - on - wait 5 seconds at each state, OR • Turn power off - wait 5 seconds - turn power on. SEELEY INTERNATIONAL – SERVICE GUIDE...
- Page 38 SECTION 7 DIAGNOSTIC CODES 7.1.3 DC 3: P-100 (3 star) or P-55 (4/5 star) open during run) Description: The BSC has detected that the pressure switch connected to the EFS unit has opened during run mode. This results in the EFS unit immediately shutting off the gas valve. SCC Display: This diagnostic code is not displayed - the normal SCC display remains.
- Page 39 OR • Turn manual thermostat off - on -off - on - wait 5 seconds at each state, OR • Turn power off - wait 5 seconds - turn power on. SEELEY INTERNATIONAL – SERVICE GUIDE...
- Page 40 SECTION 7 DIAGNOSTIC CODES 7.1.5 DC5: Thermistor not connected or short-circuit (4/5 star only) Description: The BSC has detected that the outlet duct thermistor is not connected at the BSC circuit board or short circuited. This prevents the system from starting. SCC display: Potential causes Potential remedies...
- Page 41 OR • Turn manual thermostat off - on -off - on - wait 5 seconds at each state, OR • Turn power off - wait 5 seconds - turn power on. SEELEY INTERNATIONAL – SERVICE GUIDE...
- Page 42 SECTION 7 DIAGNOSTIC CODES 7.1.7 DC 7: Ignition failure Description: The BSC has detected that the EFS unit has failed to establish flame after 3 ignition attempts. SCC display: Potential causes Potential remedies • Gas supply turned off at heater, gas meter, or gas valve •...
- Page 43 OR • Turn manual thermostat off - on -off - on - wait 5 seconds at each state, OR • Turn power off - wait 5 seconds - turn power on. SEELEY INTERNATIONAL – SERVICE GUIDE...
- Page 44 SECTION 7 DIAGNOSTIC CODES 7.1.9 DC 9: Internal memory failure Description: The BSC has detected an internal fault. SCC display: Potential causes Potential remedies • Internal memory error - faulty BSC circuit board. • Turn power off, wait 5 seconds, turn power on. Attempt reset from SCC service mode as detailed below - if fault cannot be cleared replace BSC.
- Page 45 OR • Turn manual thermostat off - on -off - on - wait 5 seconds at each state, OR • Turn power off - wait 5 seconds - turn power on. SEELEY INTERNATIONAL – SERVICE GUIDE...
- Page 46 SECTION 7 DIAGNOSTIC CODES 7.1.11 DC 11: EFS shutdown Description: The BSC has detected that the EFS unit has de-energised the gas valve due to loss of flame signal when in run mode, or that the EFS unit has failed to energise the gas valve during the flame establishment period.
- Page 47 OR • Turn manual thermostat off - on -off - on - wait 5 seconds at each state, OR • Turn power off - wait 5 seconds - turn power on. SEELEY INTERNATIONAL – SERVICE GUIDE...
- Page 48 SECTION 7 DIAGNOSTIC CODES 7.1.13 DC 13: P-100 failed to close (4/5 star) Description: The BSC has detected that the pressure switch connected to the high/low coil on the gas valve did not close when required at the start of an ignition sequence. SCC display: Potential causes Potential remedies...
- Page 49 Remove swarf if necessary. Reset: The system will record the diagnostic code and reset automatically once the condition has cleared - a manual reset is not required. SEELEY INTERNATIONAL – SERVICE GUIDE...
- Page 50 SECTION 7 DIAGNOSTIC CODES 7.1.15 DC 15: Thermistor in cool location in duct (4/5 star) Description: The BSC has detected that the outlet duct thermistor is installed in a cool location in the heater outlet duct. If the BSC detects that HX OT1 has opened multiple times in a one heating cycle the 'thermistor-off-temperature' (normally 70 C) is reduced in steps until it °...
- Page 51 • Check heater - must be level in both directions - rectify if required. • Check installation - rectify if required. Reset: The system will record the diagnostic code and reset automatically once the condition has cleared - a manual reset is not required. SEELEY INTERNATIONAL – SERVICE GUIDE...
- Page 52 SECTION 7 DIAGNOSTIC CODES 7.1.18 DC 18: Condensate detected at start (5 star) Description: The BSC has detected condensate during start-up, or has detected condensate during run mode that has not cleared within 10 minutes. SCC display: Potential causes Potential remedies •...
- Page 53 • Press and hold the small recessed 'door button' and press the 'RESET' button. • To clear recorded codes press and hold the 'FAN' button for 5 seconds. • To exit service mode close the door on the SCC and press the ON/OFF button. SEELEY INTERNATIONAL – SERVICE GUIDE...
- Page 54 SECTION 7 DIAGNOSTIC CODES Lockout states and reset procedure Lockout 1 In 'lockout 1' state the gas valve and combustion fan are turned off and the room fan runs down normally. The relevant diagnostic code No is shown in the time display of the SCC and "RESET"...
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Page 55: Section 8 Functional Checks
• Condition of the loom between the SCC and BSC - replace if damaged, • Heater type must be set to 'HEAT 3' for TG series heaters. Note - for systems with multiple SCC's this function is available on the 'Master' SCC only. SEELEY INTERNATIONAL – SERVICE GUIDE... -
Page 56: Operating Hours
SECTION 8 FUNCTIONAL CHECKS Operating hours check The number of hours that the heater has run on high and low gas can be retrieved using a Braemar SCC thermostat as follows: To enter 'service mode': • Press ON/OFF button to turn SCC off, •... -
Page 57: Duct Air Temperature
15 seconds then revert to the normal display Note - for systems with multiple SCC's this function is available on the 'Master' SCC only. The following graphs give approximate thermistor resistance vs thermistor temperature values. SEELEY INTERNATIONAL – SERVICE GUIDE... -
Page 58: Fan Operation
SECTION 8 FUNCTIONAL CHECKS Fan operation check using system setup fan speed setting The fan operation can be checked without starting the heater using the system setup maximum fan speed setting routine shown below. To help guard against inadvertent adjustment by the customer, setting the maximum fan speed (and other setup functions) must be done within the first hour of powering the SCC. -
Page 59: Ductwork
• Air flow balancing: • Check that the air flow at all outlets with all outlets open is balanced - adjust if required Duct diameter (mm) Minimum bend radius (mm) SEELEY INTERNATIONAL – SERVICE GUIDE... - Page 60 It is the policy of Seeley International to introduce continual product improvement. Accordingly, specifications are subject to change without notice. Service/Technical Support - Australia Service 1300-650-644 Technical Support 1300-650-399 seeleyinternational.com 860268-D AU 1304...
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