Roberts Gorden 400, 200, 350, 150, 300, 175, 225 250 service manual Roberts-GordonLLC

TABLE OF CONTENTS

SECTION 1: Heater Safety		1	SECTION 11: User Instructions		22
1.1 Manpower Requirements		1	11.1 User Instructions		22
SECTION 2: Installer Responsibility		2	11.2 Heater Operation		22
2.1	Wall Tag	2	11.3 Lighting Instructions		22
2.2	Corrosive Chemicals	2	11.4 Simple Troubleshooting		22
2.3	National Standards and Applicable Codes	2	SECTION 12: Servicing		24
SECTION 3: Critical Considerations		3	12.1	Servicing Instructions	24
3.1	Basic Information	3	12.2	Burner Maintenance	24
3.2	Location and Suspension	3	12.3	Fan/Motor Assembly Maintenance	24
3.3	Minimum Required Installation Clearances	3	12.4	Heat Exchanger Maintenance	24
3.4	Clearances to Combustibles	3	12.5	Gas Valve Maintenance	24
3.5	Ventilation	3	12.6	Flue Blower	24
3.6	Gas Supply	3	12.7	Venting and Air Intake Pipe	24
3.7	Electrical Supply	3	12.8	Maintenance Checklist	25
3.8	Vent	3	SECTION 13: Troubleshooting		27
3.9	Separated Combustion Installation	3	13.1	General	27
SECTION 4: National Standards and Applicable Codes		5	13.2	Troubleshooting For Automatic Ignition
4.1	Gas Codes	5		Burner Systems	28
4.2	Aircraft Hangars	5	13.3	Troubleshooting for Flame Supervision System	29
4.3	Parking Structures and Repair Garages	5	13.4	Troubleshooting for Gas Valves	30
4.4	Electrical	5	13.5	Troubleshooting for Flue Blower	30
4.5	Venting	5	SECTION 14: Replacement Parts		31
4.6	High Altitude	5	14.1	Gas Valve	31
SECTION 5: Major Components		6	14.2	Burner Compartment	32
5.1	General	6	14.3	Ignition Electrode and Flame Probe	33
5.2	Suspension	6	14.4	Heat Exchanger	34
SECTION 6: Venting		7	14.5	Louvers and Louver Spring	34
6.1	Venting	7	14.6	Flue Blower	35
6.2	Vent Installation	7	14.7	Pressure Switch	36
6.3	Unvented Operation	8	14.8	Ignition Control	36
6.4	Horizontal Venting	8	14.9	Axial Fan/Guard/Motor Assembly	36
6.5	Vertical Venting	8	14.10 Limit Switches		37
6.6	Length Requirements	8	SECTION 15: Specifications		38
6.7	Vent Material	9	15.1	Standard (Models 150 - 400) UHA[S] Series
SECTION 7: Air Supply		13		Dimension Data	38
7.1 Separated Combustion Installation		13	15.2	General Technical Data Table (All Models)	39
7.2 Unvented Installation		13	15.3	Technical Data Table (All Models)	39
7.3 Building Ventilation		13	SECTION 16: The ROBERTS GORDON® COMBAT®
7.4 Outside Combustion Air Supply		13		UHA-Series Warranty	41
SECTION 8: Gas Piping		14
8.1	Connections	14
SECTION 9: Wiring		15
9.1	Positioning Thermostats	15
9.2	Low Voltage Thermostat with One Heater	15
9.3	UHA[S] Series Internal Wiring Diagram	16
9.4	UHA[S] Series Ladder Wiring Diagram	17
9.5	Electrical Connection to the Heater	18
SECTION 10: Operation and Maintenance		19
10.1 Pre-Start-Up Checks		19
10.2 Begin Start-Up		19
10.3 Complete the Start-Up		21

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