Raypak RAYTHERM 133, Installation & Operating Instructions Manual

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WARNINGS 4
Pay Attention to These Terms 4
GENERAL SAFETY 5
Time/Temperature Relationships in Scalds 6
RECEIVING EQUIPMENT 6
Model Identification 6
General Specifications 7
All Models (Approved) 7
Hot Water Supply Heaters 7
INSTALLATION 7
Installation Codes 7
Installation Base 7
Clearances 8
Specifications and Dimensions 9
Outdoor Water Heaters 12
Combustion Air (Indoor Units Only) Air for
Combustion and Ventilation
12
Venting 13
Vent Piping 17
Vent Damper Installation 18
Plumbing 20
Flow Rates 22
Piping—Domestic Hot Water Supply
Heaters
23
Piping Diagram—Type WH - Unitemp 80
System
24
Controls—General 25
Limit Controls 26
Electrical Connections 27
Location of Controls 28
START-UP PROCEDURES 30
Before Start-Up 30
General 30
Initial Start-Up - Pump and Motor 30
Intermittent Pilot System Checkout
Procedure (S8600)
32
INSPECTION PROCEDURES 32
Burners 32
Controls 32
Inspection Procedures 33
ADDENDA: LOW NOx HEATERS
Models 0181 to 0401 33
Operation 33
Start-Up Procedures
(S8610B Ignition Module)
33
CONTENTS
3
Burner Adjustment 34
Visual Inspection 34
Electrical 34
High Gas Pressure Switch 34
Burner Tray Removal 34
Gas Valve Removal 34
Main Burner And Orifice Removal 35
Pilot Removal 35
Combustion Fan Removal 35
TROUbLESHOOTING 36
Electrical 36
Mechanical 37
WIRING DIAGRAMS 38
Wiring Diagram—W2/WH2 133 38
Wiring Diagram—WH1 0181/0261 39
Wiring Diagram—WH1 0331/0401 40
Wiring Diagram—WH1 0514–0724 41
Wiring Diagram—WH1 0824–1826 42
Wiring Diagram—WH1 2100–2500 43
Wiring Diagram—WH1 3001–4001 44
Troubleshooting—Pumps 45
SERVICE AND MAINTENANCE
PROCEDURES 45
Tube Cleaning 45
Burner Tray Removal 46
Gas Valve Removal 46
Gas Valve Adjustment - Robertshaw
(Invensys) 7000 Series 2-Stage Gas Valve
with Solenoid Valve
46
Main Burner and Orifice Removal 47
Pilot Removal and Cleaning 47
High Limit or Tankstat Removal 47
Heat Exchanger Removal 47
Heat Exchanger Re-Assembly 47
Combustion Chamber Removal 48
Control Well Replacement 48
Tube Replacement 48
Cleaning Flue Gas Passageways 49
REPLACEMENT PARTS 49
WARRANTY 50