SEELEY INTERNATIONAL Braemar TH Series User manual

(English) (TH, THD, BM)
SERVICE GUIDE
TH, THD & BM Series Gas Ducted Heaters
Quick Reference
ECOSTAR

SECTION 1 INTRODUCTION AND SAFETY
SECTION 2 PRODUCT SPECIFICATIONS & WIRING DIAGRAMS
SECTION 3 SYSTEM INSTALLATION OPTIONS
SECTION 4 HEATER POSITIONING
SECTION 5 SERVICE & TROUBLESHOOTING
SECTION 6 COMPONENT SPECIFICATIONS
SECTION 7 DIAGNOSTIC CODES
SECTION 8 FUNCTIONAL CHECKS
3.1 Installation Option Summary............................................................................................. 14
3.2 Number of Outlets.............................................................................................................14
3.3 Minimum Outlets open...................................................................................................... 15
4.1 Minimum clearances......................................................................................................... 17
4.2 Heater Location.................................................................................................................17
4.3 Return Air Grille Location.................................................................................................. 18
4.4 Return Air Grille Sizing......................................................................................................18
4.5 Return Air Relief Openings............................................................................................... 18
5.1 General checks................................................................................................................. 19
5.2 Heater Troubleshooting.....................................................................................................20
5.3 Start-up Flowchart - 3 star.................................................................................................28
5.4 Run Flowchart - 3 star.......................................................................................................29
5.5 Start-up Flowchart - 4 & 5 star.......................................................................................... 30
5.6 Run Flowchart - 4 & 5 star.................................................................................................31
6.1 Room Fan & Capacitor sizes............................................................................................ 32
6.2 Room Fan Winding Resistance.........................................................................................32
6.3 Room Fan Voltage vs Fan Speed setting..........................................................................33
6.4 Pressure Switch Ratings...................................................................................................33
6.5 Over-Temperature Limit Switch Ratings............................................................................33
7.1 Diagnostic Code definitions...............................................................................................34
7.2 Lockout states & Reset procedures.................................................................................. 52
8.1 Retrieving & Clearing recorded Diagnostic Codes............................................................53
8.2 SCC Software Version & Communications Check............................................................53
8.3 Operating Hours................................................................................................................54
8.4 Program Settings.............................................................................................................. 54
8.5 Restore Factory Default Settings...................................................................................... 55
8.6 Duct Air Temperature........................................................................................................ 55
8.7 Fan Operation...................................................................................................................56
8.8 Ductwork...........................................................................................................................57
1.1 Safety first.........................................................................................................................
1.2 Heaters covered by this manual....................................................................................... 3
1.3 Abbreviations.................................................................................................................... 3
2.1 TH3, THD3 & BM3 Specifications.....................................................................................4
2.1.1 TH3, THD3 & BM3 Wiring Diagram.................................................................................. 5
2
2.2 TH4 Specifications............................................................................................................6
2.2.1 TH4 Wiring Diagram (No zone control)............................................................................. 7
2.2.2 TH4 Wiring Diagram (24V zone control)........................................................................... 8
2.2.3 TH4 Wiring Diagram (240V zone control)......................................................................... 9
2.3 TH5 Specifications............................................................................................................ 10
2.3.1 TH5 Wiring Diagram (No zone control).............................................................................11
2.3.2 TH5 Wiring Diagram (24V zone control)........................................................................... 12
2.3.3 TH5 Wiring Diagram (240V zone control)......................................................................... 13
TABLE OF CONTENTS
®
iTH Series Gas Heater

Safety first
Employers and Employees Responsibility
Risk Assessment
This service guide is designed for use in conjunction with the installation manual supplied with each
heater. It is designed for use only by suitably trained and qualified service technicians to assist in the
identification and diagnosis of operational issues with the following Braemar gas ducted heaters
incorporating the "Braemar Smart Control" (BSC) and Fenwal 35-61 electronic ignition and flame
safeguard system.
The installation, servicing and maintenance of gas ducted heating units, particularly at height, has the
potential to create Occupational Health and Safety issues for those involved. Installers are advised to
ensure they are familiar with relevant State and Federal legislation, such as Acts, Regulations,
approved 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.
A risk assessment of all hazardous tasks is required under legislation. A risk assessment is an
essential element that should be conducted before the commencement of work, to identify and
eliminate the risk of falls and other risks, or to minimise these risks by implementing control measures.
This does not need to be a complicated process - it is a matter of assessing the job to be done and
considering what actions are necessary so the person doing the job does not injure themselves.
This should be considered in terms of:
What are the chances of an incident occurring?
What could the possible consequences be?
What can be done to reduce, or better still, eliminate the risk?
Some points to consider when working on or in a roof:
What is the best and safest access to the roof and working areas?
What condition is the roof in? Should the roof structure and surface be checked?
Does the worker have appropriate footwear?
Are all power cables/extension leads safe and appropriately rated?
Are all ladders, tools and equipment suitable and in good condition?
Where ladders are to be used, is there a firm, stable base for them to stand on?
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Can they be tied
or secured in some way at the top?
Is there a roof anchor to attach a harness and lanyard to? If so, instruction should be issued for
the use of an approved harness or only suitably trained people used.
Are all tools and materials being used, prevented from slipping and falling onto a person at
ground level?
Does the work schedule take into account weather conditions, allowing for work to be
suspended in high winds, thunder storms/lightning or other types of weather giving wet, slippery
surfaces?
Is there an on-going safety check system of harnesses, ropes, ladders and access/lifting
equipment, and where they exist on roofs, anchor points before the commencement of work?
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SECTION 1 INTRODUCTION AND SAFETY
SEELEY INTERNATIONAL – SERVICE GUIDE 2

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Is there a system which prevents employees from working on or in roofs if they are unwell or
under the influence of drugs or alcohol?
Are there any special conditions to consider i.e. excessive roof pitch, limited ground area, fragile
roof, electrical power lines?
THIS HEATER TO BE SERVICED BY AN AUTHORISED PERSON ONLY
DO NOT Operate this appliance before reading the instruction booklet.
DO NOT Place articles on or against this appliance.
DO NOT Use or store flammable materials near this appliance.
The following Braemar heaters are covered by the manual:
Braemar TH series:
Braemar TH3/TH3X models
Braemar TH4/TH4X models
Braemar TH5/TH5X models
Braemar THD3 models
Braemar BM3/BM3X models
The following abbreviations are used in this manual:
BSC Braemar Smart Control
SCC Spectrolink Comfort Control
Evap Evaporative cooling
Refrig Refrigerated cooling
SPI Braemar Single Point Ignition system
MPI Braemar Multi Point Ignition system
EFS Electronic flame safeguard
P-100 Pressure switch, nominal setting - open at 100 Pa
P-55 Pressure switch, nominal setting - open at 55 Pa
HX OT1 Heat exchanger over temperature switch No 1
HX OT2 Heat exchanger over temperature switch No 2
OT3 Over temperature switch No 3, burner cover
OT4 Over temperature switch No 4, plastic flue transition (5 star only)
Other Important Requirements:
Heaters covered by this manual
Abbreviations
SECTION 1 INTRODUCTION AND SAFETY
®
3TH Series Gas Heater

TH3/THD3/BM3 Heaters 3.7 Stars
Standard models: TH315 TH320 TH325 TH330
BM315 BM320 BM325 BM330
THD315 THD320 THD330
Nominal thermal input MJ/h 60 80 100 122
Nominal thermal output kW 14 18 23 28
Injector diameter - Nat gas mm 2.05 2.05 2.05 1.95
- Propane mm 1.25 1.25 1.25 1.25
Test point pressure - Nat gas kPa 0.875 0.875 0.875 0.875
- Propane kPa 2.50 2.50 2.50 1.90
Test point location Gas valve outlet
Supply air diameter mm 300 300 350 350
Return air diameter mm 300 300 350 350
Air flow @ 100 Pa l/s 475 630 755 960
Temperature rise C 20 - 50
Blower size 9x7 9x7 10x10 10x10
Blower type Forward curved centrifugal
Blower motor W 315 315 600 600
Blower capacitor uF 10 15 15 15
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 kg 47 50 54 70
Nominal thermal input MJ/h 80 100 122
Nominal thermal output kW 18 23 28
Injector diameter - Nat gas mm 2.05 2.05 1.95
- Propane mm 1.25 1.25 1.25
Test point pressure - Nat gas kPa 0.875 0.875 0.875
- Propane kPa 2.50 2.50 1.90
Test point location Gas valve outlet
Supply air diameter mm 350 350 400
Return air diameter mm 350 350 400
Air flow @ 100 Pa l/s 695 810 1050
Temperature rise C 20 - 50
Blower size 9x7 9x7 10x10
Blower type Forward curved centrifugal
Blower motor W 600 600 750
Blower capacitor uF 15 15 20
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 kg 51 54 70
o
o
Extra-air models: TH3X20 TH3X25 TH3X30
BM3X20 BM3X25 BM3X30
SECTION 2 PRODUCT SPECIFICATIONS & WIRING DIAGRAMS
SEELEY INTERNATIONAL – SERVICE GUIDE 4

TH3 & TH3X Wiring Diagram
SECTION 2 PRODUCT SPECIFICATIONS & WIRING DIAGRAMS
®
5TH Series Gas Heater
BLUE
BROWN
BROWN
FUSE - 10A SLOW BLOW
S1
GND
R
L1
IND/V1
V1/P1
PSW
TH/W
SPARK
V2
MAINS
LEAD
BLUE
BROWN
ROOM
FAN
BROWN
BLACK
BLUE
CAPACITOR
LT BLUE
10 9 8 7 6 5 4 3 2 1
240 Vac
OT2 - HX OT3 - BURNERS
GAS VALVE
ON-OFF
OT1 - HX
P-100
ORANGE
SPARK SENSE
GREEN
YELLOW
24 Vac
COMBUSTION
FAN
LT BLUE
GREEN
YELLOW
BLUE
GREEN-YELLOW
BLACK
BLACK
GREEN-YELLOW
GREEN-YELLOW
BROWN
ORANGE
PINK
ORANGE
GREY
ORANGE
PURPLE
RED
RED
PURPLE
BLACK
WHITE
IGN
CABLE
PINK
FENWAL 35-61
ELECTRONIC
FLAME SAFEGUARD
TRANSFORMER
WIRING DIAGRAM
BRAEMAR TH3 & TH3X MODELS
DANGER
Isolate ALL external
power sources before
servicing heater
Wiring diagram P/No: 632681/a
Spectrolink
Multi-zone
To EVAP
Control
24V Refig
Output
Heater
Manual
T\Stat
A12-WAY CONNECTOR - CENTRE
"BRAEMAR SMART CONTROL"
CIRCUIT BOARD
A
A
A
B
A
A
A
A
A

TH4 HEATERS 4.7 STARS
Standard models:
Extra-air models:
Nominal thermal input MJ/h 60 80 100 122 153
Nominal thermal output kW 14 18 23 28 35
Injector diameter - Nat gas mm 2.05 2.05 2.05 1.95 2.20
- Propane mm 1.25 1.25 1.25 1.25 -
Test point pressure - Nat gas kPa 0.875 0.875 0.875 0.875 0.875
- Propane kPa 2.50 2.50 2.50 1.90 -
Test point location Gas valve outlet
Supply air diameter mm 300 300 350 350 400
Return air diameter mm 300 300 350 350 400
Air flow @ 100 Pa l/s 475 630 755 960 1050
Temperature rise C 20 - 50
Blower size 9 x 7 9 x 7 10 x 10 10 x 10 10 x 10
Blower type Forward curved centrifugal
Blower motor W 315 315 600 600 750
Blower capacitor uF 10 15 15 15 20
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 kg 47 50 54 70 70
Nominal thermal input MJ/h 80 100 122
Nominal thermal output kW 18 23 28
Injector diameter - Nat gas mm 2.05 2.05 1.95
- Propane mm 1.25 1.25 1.25
Test point pressure - Nat gas kPa 0.875 0.875 0.875
- Propane kPa 2.50 2.50 1.90
Test point location Gas valve outlet
Supply air diameter mm 350 350 400
Return air diameter mm 350 350 400
Air flow @ 100 Pa l/s 695 810 1050
Temperature rise C 20 - 50
Blower size 9 x 7 9 x 7 10 x 10
Blower type Forward curved centrifugal
Blower motor W 600 600 750
Blower capacitor uF 15 15 20
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 kg 51 54 70
TH415 TH420 TH425 TH430 TH435
TH4X20 TH4X25 TH4X30
o
o
SECTION 2 PRODUCT SPECIFICATIONS & WIRING DIAGRAMS
SEELEY INTERNATIONAL – SERVICE GUIDE 6

BLUE
BROWN
BROWN
BROWN
FUSE - 10A SLOW BLOW
S1
GND
R
L1
IND/V1
V1/P1
PSW
TH/W
SPARK
V2
MAINS
LEAD
BLUE
BROWN
ROOM
FAN
BROWN
BLACK
BLUE
CAPACITOR
LT BLUE
10 9 8 7 6 5 4 3 2 1
240 Vac
OT2 - HX OT3 - BURNERS
GAS VALVE
HI-LO
ON-OFF
OT1 - HX
P-100
P-55
ORANGE
SPARK SENSE
GREEN
YELLOW
24 Vac
RESISTOR
COMBUSTION
FAN
LT BLUE
GREEN
YELLOW
BROWN
BLUE
GREEN-YELLOW
BLACK
BLACK
GREEN-YELLOW
GREEN-YELLOW
BROWN
OT4 - FLUE
5 STAR
ONLY
THERMISTOR
ORANGE
PINK
ORANGE
GREY
YELLOW
BLUE
ORANGE
PURPLE
RED
RED
PURPLE
YELLOW
BLACK
WHITE
IGN
CABLE
PINK
"BRAEMAR SMART CONTROL"
CIRCUIT BOARD
FENWAL 35-61
ELECTRONIC
FLAME SAFEGUARD
TRANSFORMER
WIRING DIAGRAM
BRAEMAR TH4 & TH4X MODELS
Wiring diagram P/No: 632698/a
DANGER
Isolate ALL external
power sources before
servicing heater
Spectrolink
Multi-zone
To EVAP
Control
24V Refig
Output
Heater
Manual
T\Stat
A
A
A
A
12-WAY CONNECTOR - CENTRE
AA
A
A
A
A
A
TH4 WIRING DIAGRAM - NO ZONES
SECTION 2 PRODUCT SPECIFICATIONS & WIRING DIAGRAMS
®
7TH Series Gas Heater

BLUE
BROWN
BROWN
BROWN
FUSE - 10A SLOW BLOW
S1
GND
R
L1
IND/V1
V1/P1
PSW
TH/W
SPARK
V2
MAINS
LEAD
BLUE
BROWN
ROOM
FAN
BROWN
BLACK
BLUE
CAPACITOR
LT BLUE
10 9 8 7 6 5 4 3 2 1
240 Vac
OT2 - HX OT3 - BURNERS
GAS VALVE
HI-LO
ON-OFF
OT1 - HX
P-100
P-55
ORANGE
SPARK SENSE
GREEN
YELLOW
24 Vac
RESISTOR
COMBUSTION
FAN
LT BLUE
GREEN
YELLOW
BROWN
BLUE
GREEN-YELLOW
BLACK
BLACK
GREEN-YELLOW
GREEN-YELLOW
BROWN
OT4 - FLUE
5 STAR
ONLY
THERMISTOR
ORANGE
PINK
ORANGE
GREY
YELLOW
BLUE
ORANGE
PURPLE
RED
RED
PURPLE
YELLOW
BLACK
WHITE
IGN
CABLE
PINK
"BRAEMAR SMART CONTROL"
CIRCUIT BOARD
FENWAL 35-61
ELECTRONIC
FLAME SAFEGUARD
SCC
SCC
SCC
OPTIONAL
ZONE CONTROL CIRCUIT BOARD
ZONE COMM'S LOOM
TRANSFORMER
BLUE
BROWN
ZONE DAMPER 1
ZONE DAMPER 4
ZONE DAMPER 3
ZONE DAMPER 2
240 Vac 24 Vac
TRANSFORMER
BLACK
BLACK
Zone transformer - required if using 24Vac zone dampers.
Connect directly between BSC and zone board if using 240 Vac zone dampers.
WIRING DIAGRAM
BRAEMAR TH4 & TH4X MODELS
Wiring diagram P/No: 632698/a
DANGER
Isolate ALL external
power sources before
servicing heater
Spectrolink
Multi-zone
To EVAP
Control
24V Refig
Output
Heater
Manual
T\Stat
A
A
A
A
12-WAY CONNECTOR - CENTRE
AA
A
A
A
A
A
TH4 WIRING DIAGRAM - 24V ZONE CONTROL
SECTION 2 PRODUCT SPECIFICATIONS & WIRING DIAGRAMS
SEELEY INTERNATIONAL – SERVICE GUIDE 8

BLUE
BROWN
BROWN
BROWN
FUSE - 10A SLOW BLOW
S1
GND
R
L1
IND/V1
V1/P1
PSW
TH/W
SPARK
V2
MAINS
LEAD
BLUE
BROWN
ROOM
FAN
BROWN
BLACK
BLUE
CAPACITOR
LT BLUE
10 9 8 7 6 5 4 3 2 1
240 Vac
OT2 - HX OT3 - BURNERS
GAS VALVE
HI-LO
ON-OFF
OT1 - HX
P-100
P-55
ORANGE
SPARK SENSE
GREEN
YELLOW
24 Vac
RESISTOR
COMBUSTION
FAN
LT BLUE
GREEN
YELLOW
BROWN
BLUE
GREEN-YELLOW
BLACK
BLACK
GREEN-YELLOW
GREEN-YELLOW
BROWN
OT4 - FLUE
5 STAR
ONLY
THERMISTOR
ORANGE
PINK
ORANGE
GREY
YELLOW
BLUE
ORANGE
PURPLE
RED
RED
PURPLE
YELLOW
BLACK
WHITE
IGN
CABLE
PINK
"BRAEMAR SMART CONTROL"
CIRCUIT BOARD
FENWAL 35-61
ELECTRONIC
FLAME SAFEGUARD
SCC
SCC
SCC
OPTIONAL
ZONE CONTROL CIRCUIT BOARD
ZONE COMM'S LOOM
TRANSFORMER
BLUE
BROWN
ZONE DAMPER 1
ZONE DAMPER 4
ZONE DAMPER 3
ZONE DAMPER 2
240 Vac
WIRING DIAGRAM
BRAEMAR TH4 & TH4X MODELS
Wiring diagram P/No: 632698/a
DANGER
Isolate ALL external
power sources before
servicing heater
Spectrolink
Multi-zone
To EVAP
Control
24V Refig
Output
Heater
Manual
T\Stat
A
A
A
A
12-WAY CONNECTOR - CENTRE
AA
A
A
A
A
A
TH4 WIRING DIAGRAM - 240V ZONE CONTROL
SECTION 2 PRODUCT SPECIFICATIONS & WIRING DIAGRAMS
®
9TH Series Gas Heater

TH5 HEATERS 5.6 STARS
Standard models:
Extra-air models:
Nominal thermal input - Nat Gas MJ/h 60 88 122
Nominal thermal input - Propane MJ/h 60 80 112
Nominal thermal output - Nat Gas kW 16 23 32
Nominal thermal output - Propane kW 16 21 29
Injector diameter - Nat gas mm 2.05 1.95 1.95
- Propane mm 1.25 1.25 1.25
Test point pressure - Nat gas kPa 0.875 0.875 0.875
- Propane kPa 2.50 1.70 1.70
Test point location Gas valve outlet
Supply air diameter mm 300 300 350
Return air diameter mm 300 300 350
Air flow @ 100 Pa l/s 500 640 935
Temperature rise C 20 - 50
Blower size 9 x 7 9 x 7 10 x 10
Blower type Forward curved centrifugal
Blower motor W 315 315 600
Blower capacitor uF 10 15 15
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 kg 58 61 72
Nominal thermal input - Nat Gas MJ/h 88 122
Nominal thermal input - Propane MJ/h 80 112
Nominal thermal output - Nat Gas kW 23 32
Nominal thermal output - Propane kW 21 29
Injector diameter - Nat gas mm 1.95 1.95
- Propane mm 1.25 1.25
Test point pressure - Nat gas kPa 0.875 0.875
- Propane kPa 1.70 1.70
Test point location Gas valve outlet
Supply air diameter mm 350 400
Return air diameter mm 350 400
Air flow @ 100 Pa l/s 755 1070
Temperature rise C 20 - 50
Blower size 9 x 7 10 x 10
Blower type Forward curved centrifugal
Blower motor W 600 750
Blower capacitor uF 15 20
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 kg 61 72
TH516 TH523 TH532
TH5X23 TH5X32
o
o
SECTION 2 PRODUCT SPECIFICATIONS & WIRING DIAGRAMS
SEELEY INTERNATIONAL – SERVICE GUIDE 10

BLUE
BROWN
BROWN
BROWN
FUSE - 10A SLOW BLOW
S1
GND
R
L1
IND/V1
V1/P1
PSW
TH/W
SPARK
V2
MAINS
LEAD
BLUE
BROWN
ROOM
FAN
BROWN
BLACK
BLUE
CAPACITOR
LT BLUE
10 9 8 7 6 5 4 3 2 1
240 Vac
OT2 - HX OT3 - BURNERS
GAS VALVE
HI-LO
ON-OFF
OT1 - HX
P-100
P-55
ORANGE
SPARK SENSE
GREEN
YELLOW
24 Vac
RESISTOR
COMBUSTION
FAN
LT BLUE
GREEN
YELLOW
BROWN
BLUE
GREEN-YELLOW
BLACK
BLACK
GREEN-YELLOW
GREEN-YELLOW
BROWN
OT4 - FLUE
5 STAR
ONLY
THERMISTOR
ORANGE
PINK
ORANGE
GREY
YELLOW
BLUE
ORANGE
PURPLE
RED
RED
PURPLE
YELLOW
BLACK
WHITE
IGN
CABLE
PINK
"BRAEMAR SMART CONTROL"
CIRCUIT BOARD
FENWAL 35-61
ELECTRONIC
FLAME SAFEGUARD
TRANSFORMER
WIRING DIAGRAM
BRAEMAR TH5 & TH5X MODELS
Wiring diagram P/No: 632698/a
DANGER
Isolate ALL external
power sources before
servicing heater
Spectrolink
Multi-zone
To EVAP
Control
24V Refig
Output
Heater
Manual
T\Stat
A
A
A
A
12-WAY CONNECTOR - CENTRE
AA
A
A
A
A
A
TH5 WIRING DIAGRAM - NO ZONES
SECTION 2 PRODUCT SPECIFICATIONS & WIRING DIAGRAMS
®
11 TH Series Gas Heater

BLUE
BROWN
BROWN
BROWN
FUSE - 10A SLOW BLOW
S1
GND
R
L1
IND/V1
V1/P1
PSW
TH/W
SPARK
V2
MAINS
LEAD
BLUE
BROWN
ROOM
FAN
BROWN
BLACK
BLUE
CAPACITOR
LT BLUE
10 9 8 7 6 5 4 3 2 1
240 Vac
OT2 - HX OT3 - BURNERS
GAS VALVE
HI-LO
ON-OFF
OT1 - HX
P-100
P-55
ORANGE
SPARK SENSE
GREEN
YELLOW
24 Vac
RESISTOR
COMBUSTION
FAN
LT BLUE
GREEN
YELLOW
BROWN
BLUE
GREEN-YELLOW
BLACK
BLACK
GREEN-YELLOW
GREEN-YELLOW
BROWN
OT4 - FLUE
5 STAR
ONLY
THERMISTOR
ORANGE
PINK
ORANGE
GREY
YELLOW
BLUE
ORANGE
PURPLE
RED
RED
PURPLE
YELLOW
BLACK
WHITE
IGN
CABLE
PINK
"BRAEMAR SMART CONTROL"
CIRCUIT BOARD
FENWAL 35-61
ELECTRONIC
FLAME SAFEGUARD
SCC
SCC
SCC
OPTIONAL
ZONE CONTROL CIRCUIT BOARD
ZONE COMM'S LOOM
TRANSFORMER
BLUE
BROWN
ZONE DAMPER 1
ZONE DAMPER 4 ZONE DAMPER 3
ZONE DAMPER 2
240 Vac 24 Vac
TRANSFORMER
BLACK
BLACK
Zone transformer - required if using 24Vac zone dampers.
Connect directly between BSC and zone board if using 240 Vac zone dampers.
WIRING DIAGRAM
BRAEMAR TH5 & TH5X MODELS
Wiring diagram P/No: 632698/a
DANGER
Isolate ALL external
power sources before
servicing heater
Spectrolink
Multi-zone
To EVAP
Control
24V Refig
Output
Heater
Manual
T\Stat
A
A
A
A
12-WAY CONNECTOR - CENTRE
AA
A
A
A
A
A
TH5 WIRING DIAGRAM - 24V ZONE CONTROL
SECTION 2 PRODUCT SPECIFICATIONS & WIRING DIAGRAMS
SEELEY INTERNATIONAL – SERVICE GUIDE 12

BLUE
BROWN
BROWN
BROWN
FUSE - 10A SLOW BLOW
S1
GND
R
L1
IND/V1
V1/P1
PSW
TH/W
SPARK
V2
MAINS
LEAD
BLUE
BROWN
ROOM
FAN
BROWN
BLACK
BLUE
CAPACITOR
LT BLUE
10 9 8 7 6 5 4 3 2 1
240 Vac
OT2 - HX OT3 - BURNERS
GAS VALVE
HI-LO
ON-OFF
OT1 - HX
P-100
P-55
ORANGE
SPARK SENSE
GREEN
YELLOW
24 Vac
RESISTOR
COMBUSTION
FAN
LT BLUE
GREEN
YELLOW
BROWN
BLUE
GREEN-YELLOW
BLACK
BLACK
GREEN-YELLOW
GREEN-YELLOW
BROWN
OT4 - FLUE
5 STAR
ONLY
THERMISTOR
ORANGE
PINK
ORANGE
GREY
YELLOW
BLUE
ORANGE
PURPLE
RED
RED
PURPLE
YELLOW
BLACK
WHITE
IGN
CABLE
PINK
"BRAEMAR SMART CONTROL"
CIRCUIT BOARD
FENWAL 35-61
ELECTRONIC
FLAME SAFEGUARD
SCC
SCC
SCC
OPTIONAL
ZONE CONTROL CIRCUIT BOARD
ZONE COMM'S LOOM
TRANSFORMER
BLUE
BROWN
ZONE DAMPER 1
ZONE DAMPER 4 ZONE DAMPER 3
ZONE DAMPER 2
240 Vac
WIRING DIAGRAM
BRAEMAR TH5 & TH5X MODELS
Wiring diagram P/No: 632698/a
DANGER
Isolate ALL external
power sources before
servicing heater
Spectrolink
Multi-zone
To EVAP
Control
24V Refig
Output
Heater
Manual
T\Stat
A
A
A
A
12-WAY CONNECTOR - CENTRE
AA
A
A
A
A
A
TH5 WIRING DIAGRAM - 240V ZONE CONTROL
SECTION 2 PRODUCT SPECIFICATIONS & WIRING DIAGRAMS
®
13 TH Series Gas Heater

3.1 Installation options summary
Various installation options are available depending on the heater and cooler type, the type
and number of thermostats installed and whether or not individual zones are required.
SECTION 3 SYSTEM INSTALLATION OPTIONS
HEATER & COOLER
OPTIONS
THERMOSTAT
OPTIONS
ZONE
OPTIONS
3 STAR HEATERS
4 & 5 STAR HEATERS
3 star heater only '2-wire' t/stat or SCC
Not available3 star heater + evap Must use SCC
3 star heater + refrig Must use SCC
4/5 star heater only 1 x SCC No zones
1 to 4 zones + common zone
1 to 4 SCC's 1 zone per SCC
(optional common zone -
depends on house layout)
4/5 star heater + evap 1 x SCC No zones
1 to 4 zones + common zone
(zones do not operate with evap cooling)
1 to 4 SCC's 1 zone per SCC
(optional common zone -
depends on house layout)
(zones do not operate with evap cooling)
4/5 star heater + refrig 1 x SCC No zones
1 to 4 zones + common zone
1 to 4 SCC's
1 zone per SCC
(zone 1 becomes forced common
zone when in cooling mode)
3.2 Number of outlets TH3, THD3, BM3, TH4 & TH5 series
The number of outlets that can be installed with each heater is based on the following flow
rates for each nominal 150mm outlet:
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.
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SEELEY INTERNATIONAL – SERVICE GUIDE 14

3/4 STAR - recommended installed outlets - CEILING
3 STAR - Minimum outlets open - CEILING
5 STAR - recommended installed outlets - CEILING
3/4 STAR - recommended installed outlets - FLOOR
5 STAR - recommended installed outlets - FLOOR
Max FS set to
Max FS set to
Max FS set to
Max FS set to
Max FS set to
15 kW
15 kW
15 kW
15 kW
15 kW
20 kW
20 kW
22 kW
20 kW
22 kW
25 kW
25 kW
32 kW
25 kW
32 kW
30 kW
30 kW
22 kW
30 kW
22 kW
20 kW
20 kW
32 kW
20 kW
32 kW
25 kW
25 kW
25 kW
30 kW
30 kW
30 kW
35 kW
35 kW
Extra-air
Extra-air
Extra-air
Extra-air
Extra-air
Extra-air
Extra-air
Extra-air
Extra-air
Extra-air
Extra-air
Extra-air
Extra-air
10
10
10
10
10
9
9
9
9
9
8
8
8
8
8
7
7
7
7
7
5 - 8
5
5 - 8
6 - 10
7 - 11
5 - 8
5
5 - 8
7 - 11
7 - 11
5 - 8
5
5 - 8
7 - 10
7 - 10
6 - 9
6
6 - 9
8 - 12
8 - 12
7 - 10
7
9 - 13
9 - 14
11 - 18
7 - 11
7
10 - 15
9 - 14
9 - 14
8 - 13
8
7 - 11
11 - 17
11 - 17
8 - 13
7
11 - 17
9 - 14
9
12 - 19
9 - 14
12 - 19
7 - 12
7
9 - 16
10 - 16
12 - 21
8 - 13
8
11 - 18
10 - 17
10 - 17
9 - 15
9
8 - 13
12 - 20
12 - 20
9 - 15
8
12 - 20
10 - 17
10
13 - 22
10 - 17
13 - 22
6 - 9
6
7 - 11
7 - 11
10 - 15
6 - 9
6
8 - 13
8 - 12
8 - 12
7 - 10
7
6 - 9
9 - 14
9 - 14
7 - 10
6
9 - 14
8 - 12
8
10 - 16
8 - 12
10 - 16
6 - 9
6
8 - 12
8 - 13
11 - 16
6 - 10
6
9 - 14
9 - 13
9 - 13
7 - 11
7
6 - 10
10 - 15
10 - 15
7 - 11
6
10 - 15
8 - 13
8
11 - 17
8 - 13
11 - 17
6 - 11
6
6 - 11
9 - 14
9 - 14
4 - 7
4
5 - 7
6 - 9
6 - 9
4 - 6
4
4 - 7
5 - 8
6 - 9
4 - 6
4
4 - 6
5 - 7
5 - 8
3.3 Minimum outlets open
3.2 Number of outlets
SECTION 3 SYSTEM INSTALLATION OPTIONS
®
15 TH Series Gas Heater

3 STAR - Minimum outlets open - FLOOR
Max FS set to 15 kW 20 kW 25 kW 30 kW 20 kW 25 kW 30 kW
Extra-air Extra-air Extra-air
10
9
8
7
6
7
7
899
11 11 12
10 10
12 12 13
78
9910
89
10 10 11
9
6
5
5
4 STAR - Minimum outlets open - CEILING
4 STAR - Minimum outlets open - FLOOR
5 STAR - Minimum outlets open - CEILING
5 STAR - Minimum outlets open - FLOOR
15 kW
15 kW
15 kW
15 kW
20 kW
20 kW
22 kW
22 kW
25 kW
25 kW
32 kW
32 kW
30 kW
30 kW
22 kW
22 kW
35 kW
35 kW
20 kW
20 kW
32 kW
32 kW
25 kW
25 kW
30 kW
30 kW
Extra-air
Extra-air
Extra-air
Extra-air
Extra-air
Extra-air
Extra-air
Extra-air
Extra-air
Extra-air
1
2
2
2
2
3
3
4
2
3
3
4
3
4
2
3
2
4
3
4
3
4
2
3
2
3
SECTION 3 SYSTEM INSTALLATION OPTIONS
SEELEY INTERNATIONAL – SERVICE GUIDE 16
3.3 Minimum outlets open

4.1 Clearance for servicing and maintenance
4.2 Heater location
The heater must be positioned so that sufficient clearance is available for servicing and
maintenance:
200mm above the heater, and
750mm at the room fan end of the heater, and
The heater must be positioned so the following minimum clearances from flue terminal are
achieved:
75 From a drain pipe or soil pipe.
300 From any other flue terminal, cowl, or combustion air intake.
Below eaves, balconies and other projections.
Horizontally from an openable window, door, non-mechanical air inlet, or
any other opening into a building with the exception of sub-floor
ventilation.
500 From electricity meter of fuse box.
From a return wall or external corner.
Horizontally from any building structure or obstruction facing a terminal.
1000 From a gas meter.
From a mechanical air inlet, including a spa blower.
Vertically below an openable window, non-mechanical air inlet, or any
other opening into a building with the exception of sub-floor ventilation.
1500 Horizontally in the direction of discharge from an openable window, door,
non-mechanical air inlet, or any other opening into a building with the
exception of sub-floor ventilation.
When installed in a ceiling the heater should be located above a load bearing wall where
possible. If this is not possible, ensure that the roof structure is capable of supporting the
additional load of the heater.
Installing the heater above or directly outside “quiet” rooms should be avoided.
Bedrooms,
Living rooms,
Lounge rooms,
Dining rooms
It is also worth considering the neighbors, if possible, avoid placing the heater close to quiet
rooms in the neighbors property.
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Minimum
Minimum
Flue terminal clearances
Laundry
Bathroom
Garage
Kitchen
Minimum
clearance
(mm)
Clearance from
Avoid: Better locations are above or outside
SECTION 4 HEATER POSITIONING
®
17 TH Series Gas Heater

4.3 Return air grille location
4.4 Return air grille sizing
The following points are important when selecting a location for the return air grille:
Always locate in a suitably heated central area, eg, central hallways.
In a zoned system, the return air grille must be located in the common zone.
Do not locate in a bathroom or laundry as moisture present in these rooms may settle
on the fan/heat exchanger when the heater is not in use.
The return air grille must have a clear return air path from all outlets and must not be
obstructed, eg, by carpets, furniture, clothing, open doors etc'.
It is recommended that the return air grille be located at a low level to ensure effective
heated air distribution. If a high level return air grille is used cold spots at floor level
may result, and system performance and efficiency will be reduced.
Air should not be drawn through un-heated areas.
The following minimum return air grille sizes are required to minimise pressure drop and to
enable correct air flow rates:
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Heater model (kW)
TH/THD/BM
Minimum return air grille size (mm) Duct connection dia
Without filter With filter (mm)
15/16 kW
20/23 kW
20/23 kW extra air
25 kW
25 kW extra air
30/32 kW
30/32 kW extra air
35 kW
500 x 400 750 x 400 300
500 x 400 750 x 400 300
600 x 400 900 x 400 350
600 x 400 900 x 400 300
750 x 400 1000 x 400 350
750 x 400 1000 x 400 350
900 x 400 1200 x 400 400
900 x 400 1200 x 400 400
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Equivalent or larger grille sizes may also be used.
Fitting a return air filter is recommended - it is important to allow for this in selecting the
grille size.
Fitting a return air filter may generate some additional air flow noise.
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.
4.5 Return air relief openings
SECTION 4 HEATER POSITIONING
SEELEY INTERNATIONAL – SERVICE GUIDE 18

SECTION 5 SERVICE & TROUBLESHOOTING
5.1 General checks
DISCUSS THE PROBLEM WITH THE CUSTOMER
IS THE HEATER WORKING SOMETIMES OR NOT AT ALL ?
IS THE HEATER NOT WORKING AS THE CUSTOMER EXPECTS ?
The following points are provided as a guide to assist in diagnosing problems which may
prevent correct heater operation.
CHECK DIAGNOSTIC CODE HISTORY:
See section 8.1 to access stored diagnostic codes
See section 7.1 for a description of diagnostic codes
CHECK CONTROL-TO-HEATER COMMUNICATION:
Spectrolink Comfort Control displays "yes" when power is first applied - this confirms
that control and loom are OK - see section 8.2 for how to perform a communication
check from Service Mode.
CHECK HIGH AND LOW OPERATING TIMES:
See section 8.3 to access operating times
A complaint that "the heater does not heat properly" combined with long periods on
low gas rate may indicate restricted duct work
CHECK PROGRAM SETTINGS:
Check that program settings are as the customer requires - see section 8.4 to check
settings, see section 8.5 for restoring factory default program settings
Incorrect settings can cause the heater to appear to operate incorrectly
CHECK POWER SUPPLY:
Check supply voltage and polarity
CHECK GAS SUPPLY PRESSURE:
If the test point pressure is low, check the supply pressure to the heater when it is
running on maximum gas rate - it must be at least 1.13 kPa for natural gas, and 2.75
kPa for propane. If the supply pressure is less than this determine the reason and
rectify.
All gas valves are factory set and should not require field adjustment
CHECK INSTALLATION:
Supply and return air duct sizing
Duct layout, bends
Return air grille size
Return air filter
Number of outlets
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®
19 TH Series Gas Heater