Roberts Gorden DAT115, DAT75, DAT90, DAT100 service manual 2005

TABLE OF CONTENTS

SECTION 1: Heater Safety		2	SECTION 12: User Instructions		25
SECTION 2: Installer Responsibility		2	12.1	User Instructions	25
2.1	Clearances to Combustibles	2	12.2	Heater Operation	25
2.2	Corrosive Chemicals	2	12.3	Common User Controls (all models)	25
2.3	National Standards and Applicable Codes	2	12.4	Cooling Section Operation	26
SECTION 3: Critical Considerations		3	12.5	Heating Section Lighting Instructions	26
3.1	Basic Information	3	12.6	Simple Fault Finding (all models)	26
3.2	Location and Suspension	3	SECTION 13: Servicing		27
3.3	Minimum Required Installation Clearances	3	13.1	Servicing Instructions	27
3.4	Clearances to Combustibles	3	13.2	Burner Maintenance	27
3.5	Ventilation	3	13.3	Fan/Motor Assembly Maintenance	27
3.6	Gas Supply	3	13.4	Heat Exchanger Maintenance	27
3.7	Electrical Supply	3	13.5	Gas Control Valve Maintenance (all models)	28
3.8	Flue	3	13.6	Flue Fan	28
3.9	Coil Condense Drain	3	SECTION 14: Conversion Between Gases		29
SECTION 4: Specifications		5	14.1	General	29
4.1	DAT (all models)	5	14.2	Burner Conversion	29
4.2	General Technical Data Table (all models)	6	14.3	Gas Valves	29
4.3	Technical Data Table - Heater Section (all models)	7	SECTION 15: Troubleshooting		30
4.4	DualAir® Performance Data -		15.1	General	30
	Graph of Air Flows v Static Pressure	8	15.2	Troubleshooting For Automatic Ignition
SECTION 5: Heater Installation		9		Burner Systems	31
5.1	General	9	15.3	Troubleshooting for Flame Supervision System	32
5.2	Handling	9	15.4	Troubleshooting for Solenoid Valves	33
5.3	Shelf Mounting and Suspension	9	15.5	Troubleshooting for Main Fan	33
SECTION 6: Flue Installation		10	15.6	Troubleshooting for Fan Contactor	34
6.1	Flue Installation	10	SECTION 16: Removal and Replacement Parts		35
6.2	Type C12, C32 & C62 Appliance	10	16.1	Gas Valve	35
6.3	Type B22 Appliance	10	16.2	Burner Compartment	36
6.4	Converting from Top to Side Terminations		16.3	Ignition Electrode and Flame Probe	37
	for Flue and Air Intake	10	16.4	Flue Fan	38
SECTION 7: Air Supply		13	16.5	Heater Pressure Switch	39
7.1 Room Sealed Installation		13	16.6	Cooling Coil Safety Devices	40
7.2 Open Flued Installation		13	16.7	Ignition Control	41
7.3 Building Ventilation		13	16.8	Fan Motor Removal	41
7.4 Isolated Equipment Rooms		13	16.9	Combination Fan/Limit Thermostat	42
SECTION 8: Optional Heater Configurations		14
8.1	Distribution Duct	14
SECTION 9: Gas Piping		15
9.1	Connections	15
SECTION 10: Wiring and Electrical Information		16
10.1 Electrical Supply		16
10.2 Remote Control		16
10.3 DAT Main Circuit Board Terminal Identification		17
10.4 DAT Wiring Diagram Models 75-115		18
10.5 DAT Wiring Diagram Models 75-115		19
10.6 DAT Site Connections at Main Circuit Board		20
SECTION 11: Commissioning		21
11.1 Pre Commission Checks		21
11.2 Gas Supply		21
11.3 Mechanical Checks		21
11.4 Begin Commissioning		21
11.5 Combustion Testing (all models)		23
11.6 Turning Off the DualAir® Unit		24
11.7 External Controls		24
11.8 Complete the Commissioning		24
11.9 Instruction to the User		24

© 2005

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