Raypak 337A Contents, Part One, Owners Operating Instructions, Section, Servicing Instructions

CONTENTS

4	PART ONE	30	Wiring Diagram - Digital Models, Low NOx
	OWNER'S OPERATING INSTRUCTIONS	31	SECTION 4
			SERVICING INSTRUCTIONS
4	SECTION 1	31	General Location of Controls
	START-UP PROCEDURES	32	Control Panel Removal
4	Before Start-Up	32	Control Adjustments - Digital Models
5	Lighting Instructions & Shut-Off Procedures -	32	Control Adjustments - Millivolt Models
	Manually Lighted Pilots MV	33	Digital Thermostat Controls
6	Operating Instruction & Shut-Off Procedures -	33	Thermostat Control Operation
	Automatically Lighted Pilots IID	35	Diagnostics
7	After Start-Up	35	Codes
7	SECTION 2	35	Reading a Fault
	CAUTION	36	Remote Control Installation and Operation
8	SECTION 3	36	Remote Operation
	MAINTENANCE & CARE PROCEDURES	36	Activating the Remote
8	Pool & Spa Water Chemistry	37	Remote Control Wiring
8	Automatic Chlorinators & Chemical Feeders	37	2-Wire Remote Control
9	Cold Weather Operation	37	3-Wire Remote Control
9	Winterizing the Pool & Spa Heater	38	Water Pressure Switch
10	PART TWO	38	Flame Roll-Out Safety Switch
	INSTALLATION & SERVICE INSTRUCTIONS	38	High Limits
10	SECTION 1	38	Pilot Safety
	RECEIVING EQUIPMENT	39	Burner Tray Removal (ATM)
11	SECTION 2	39	Gas Valve Removal (ATM)
	GENERAL SPECIFICATIONS	39	Main Burner and Orifice Removal (ATM)
11	SECTION 3	39	Pilot Removal and Cleaning
	INSTALLATION INSTRUCTIONS	39	Heat Exchanger Removal
11	Code Requirements	40	Tube Cleaning Procedure
12	Clearances	40	Desooting Procedure
12	Outdoor Heater Installation	40	Combustion Chamber Removal
14	Florida Building Code 2001	40	Immersion Well Replacement
15	Indoor Heater Installation	40	Unitherm Governor (U.G.) Replacement
15	Outdoor Stack/Indoor Stack	41	Low NOx Pool Heaters
16	Atmospheric Specifications and Dimensions	41	Operation
17	Low NOx Specifications and Dimensions	41	Start-Up Procedures
18	Combustion and Ventilation Air	41	Visual Inspection
18	Vent Piping	41	Electrical
19	Gas Supply Connections	41	Flame Roll-Out Safety Switch
20	Gas Pressure Regulator	42	Burner Tray Removal
20	Gas Pressure Adjustment Locations	42	Gas Valve Removal
20	Pipe Sizing For Gas Connections	42	Main Burner and Orifice Removal
21	Plumbing For Water Connections	42	Pilot Removal
21	Flow Rates	42	Combustion Blower Removal
22	Polymer Headers
		43	SECTION 5
22	Cast Iron Headers		TROUBLESHOOTING
22	Unitherm Governor Operation	44	Electrical - Standing Pilot Millivolt
23	Internal Automatic Bypass Valve	45	Electrical - Electronic Ignition (IID)
23	External Auxiliary Bypass Valve	46	Digital Control Logic - Flow Chart
23	Auxiliary Bypass Valve Adjustment	47	SECTION 6
23	Pressure Relief Valve Installation		REPLACEMENT PARTS
24	Heat Exchanger Pressure Drop Tables	48	Illustrated Parts List
25	Heat Exchanger Reversal Procedure	51	Part Numbers

26Electrical Wiring

26Millivolt Models

26Digital Models

27Transformer Wiring

28Wiring Diagram - Millivolt (Mechanical Therm.)

29Wiring Diagram - Digital Models, Atmospheric

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