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Water Heater
Raypak
503-2003 manual SECTION D Start up
Models:
503-2003
1
48
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Troubleshooting
Install
Wiring Diagrams
Parts Replacement
Maintenance
Venting Configurations
Field Wiring Connection
High Limit - Manual Reset
UDB Diagnostic Board
Leak Test Procedure Dual-SeatGas Valve
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Image 48
SECTION D: Start up
46
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Image 48
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Contents
INSTALLATION AND OPERATING INSTRUCTIONS
Models Types H & WH
Page
Table of Contents
WARNINGS
SECTION A Before Installation
Product Receipt
Model Identification
Ratings and Certifications
Installations at Elevation
Component Locations
General Information
SECTION B Hot Water Supply General Safety
Time/Temperature Relationships in Scalds
Water Temp
Time to Produce Serious Burn
SECTION C Installation
Installation Codes
Indoor Installations
Equipment Base
U.S. Installations1
Canadian Installations2
Outdoor Installations
Combustion and Ventilation Air
Indoor Units
U.S. Installations
Optional Construction Air Filter
Direct Vent
TruSeal Combustion Air
Canadian Installations
Water Piping
General
Relief Valve Piping
Hydrostatic Test
Cold Water Operation
Cold Water Starts
Temperature & Pressure Gauge
Cold Water Run
Hydronic Heating
Pump Selection
Feedwater Regulator
Piping
Potable Water and Space Heating
Pool Heating
Automatic Chlorinators and Chemical Feeders
Winterizing Your Heater
Gas Supply
Pool/Spa Water Chemistry
Water Hardness
pH of Water
Gas Supply Connection
Gas Supply Pressure
Electrical Power Connections
Check the Power Source
Field-ConnectedControllers
Making the Electrical Connections
Field Wiring Connection
DANGER SHOCK HAZARD
Venting
Appliance Categories
Support of Vent Stack
General
Canada Installations
Vent Terminal Location
U.S. Installations
Venting Installation Tips
Venting Configurations
Installation
Vertical Venting Category
Termination
Common Venting
Volume of
Vent Size
Horizontal Through-the-WallDirect
Venting Category
Installation
Certified Vent
Direct Vent - Vertical
Installation
SECTION C Installation
Termination
Outdoor Installation
Controls
Freeze Protection
Operating Modes
Definitions
Operation
Default
Modes
Range
Heater Sequence of Operation
Model
Model
SECTION C Installation
SECTION C Installation
Ignition Module
High Limit - Manual Reset
High Limit - Auto Reset Optional
Flow Switch
Code
Modulating Temperature Control
High and Low Gas Pressure Switches Optional
Air Pressure Switch
Low Water Cut-OffOptional
Blocked Vent Switch
UDB Diagnostic Board
SECTION C Installation
Wiring Diagrams
Models
SECTION C Installation
SECTION C Installation
Models
SECTION C Installation
For Your Safety
SECTION D Start-up
Pre Start-up
Filling System Heating Boilers
Blower Adjustment
Check Power Supply
Start-Up
Pre Start-upCheck
Manifold Adjustment
Safety Inspection
Leak Test Procedure Dual-SeatGas Valve
Follow-Up
Post Start-UpCheck
SECTION D Start up
SECTION E Operation
Lighting Instructions
To Turn Off Gas To Appliance
SECTION E Operation
Troubleshooting
SECTION F
SECTION D Start up
UDB Fault History
SECTION G Maintenance
Suggested Minimum Maintenance Schedule
Daily
Monthly
Preventive Maintenance Schedule
Periodically
Weekly
Semi-Annually
SECTION H Appendix
Inside Air Contamination
LIMITED PARTS WARRANTY MVB - TYPES H AND WH
HEAT EXCHANGER WARRANTY
ADDITIONAL WARRANTY EXCLUSIONS
PARTS REPLACEMENT