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Raypak
751 manual Wiring Diagram, Figure L-2 WIRING DIAGRAM
Models:
751
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Install
Wiring Diagram
Parts Replacement
Maintenance
Venting Configurations
Central Point Wiring CPW
High Limit - Manual Reset
U-2Diagnostics Board
Pump Turn-offDelay
Blower Adjustment
Page 44
Image 44
WIRING DIAGRAM
Figure
L-2
WIRING DIAGRAM
44
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Page 44
Image 44
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Contents
INSTALLATION AND OPERATING INSTRUCTIONS
Advanced Design Boiler
Models 751, 1001 & 1501 - Types H, WH & P
WHAT TO DO IF YOU SMELL GAS
Page
CONTENTS
BEFORE INSTALLATION
GENERAL SAFETY
INSTALLATION
WARNINGS
Pay Attention to These Terms
DANGER
WARNING - CALIFORNIA PROPOSITION
BEFORE INSTALLATION
Installations at Elevation
Product Receipt
Model Identification
Component Locations
Fig. 1 Component Locations
GENERAL SAFETY
Time/Temperature Relationships in Scalds
Water
Time to Produce Serious
INSTALLATION
Installation Codes
Indoor Installations
Equipment Base
Outdoor Installations
Combustion and Ventilation Air
Indoor Units
Direct Vent
Table D Vent/Air Inlet Termination Clearances
U.S. Installations1
Canadian Installations2
U.S. Installations
Canadian Installations
Conventional Combustion Air Supply
All Air from Inside the Building
Low Temperature System
Temperature & Pressure Gauge
WATER PIPING
General
HYDRONIC HEATING
Pump Selection
Pressure Drop in Feet of Head Feedwater Regulator
Piping - Heating Boilers
Fig. 4 Single Boiler - Primary/Secondary Piping
Fig. 6 Dual Boiler Piping
Fig. 7 Dual Boiler - Piping with CHX
DOMESTIC HOT WATER PIPING
Fig. 9 Single Boiler - Domestic Hot Water with One Storage Tank
Fig. 11 Single Boiler - Domestic Hot Water with One Storage Tank and CHX 2 pump system
POOL HEATING
Automatic Chlorinators and Chemical Feeders
Winterizing Your Heater
Pool and Spa Water Chemistry
Fig. 13 Single Boiler - Pool Application
GAS SUPPLY CONNECTIONS
Gas Supply Connection
Gas Supply Pressure
Model
1-1/2”
ELECTRICAL POWER CONNECTIONS
Check the Power Source
Gas Pressure Regulator
Venting of Diaphragm Gas Components
Electrical Connections - Domestic Hot Water
Definition of Appliance Categories
VENTING CONNECTIONS
General
U.S. Installations
Support of Vent Stack
Vent Terminal Location
Canadian Installations
Venting Installation Tips
Venting Configurations
ADB-1501
Natural Draft Vertical Vent Termination
ADB-1501
Horizontal Thru-wallDirect Vent Termination
Horizontal Thru-wallDirect Vent Termination
·45′ of straight flue pipe
This type of installation can cause non warrantable problems with components and poor operation of the unit due to the recirculation of flue products. Multiple direct vent caps, when installed in the same horizontal plane, should have three 3 foot clearance from the side of one vent cap to the side of the adjacent vent caps
Vertical Direct Venting System Installation
Vertical Direct Vent Termination
Model
Model
Condensing Heat Exchanger Category
Condensing Heat Exchanger
These installations utilize the boiler mounted blower to draw combustion air from outdoors and vent combus- tion products to the outdoors
Outdoor Installation with Add-On
Category IV Installation
Vertical Direct Venting System With
Add-onCondensing Heat Exchanger
CONDENSATE DRAIN
Central Point Wiring CPW
CONTROLS
The CPW Board
Light
Pump Turn-offDelay
Freeze Protection Feature
Blower Fan Pre-purge
Blower Fan Post-purge
U-2Diagnostics Board
Light
Color
Indication
WIRING DIAGRAM
Figure L-2 WIRING DIAGRAM
Flow Switch
High Limit - Manual Reset
High Limit - Auto Reset
Ignition Control Module
High and Low Gas Pressure Switches - Manual Reset
For Your Safety - Read Before Lighting
PRE-START-UP
Low Water Cut Off Optional
Pre-Start-upCheck
Check Power Supply
Blower Adjustment
Pilot Adjustment
ADB INITIAL START-UP
6.If you have spark, turn off unit
Main Burner Adjustment
Safety Inspection
POST START-UPCHECK
Follow-up
MAINTENANCE
Suggested Minimum Maintenance Schedule
OPERATION
Operating Instructions
CONNECTING THE CONDENSING HEAT EXCHANGER CHX
Cleaning Boiler Heating Surfaces
Daily
Monthly
Vent Switch Adjustment
APPENDIX
Inside Combustion Air Contamination
START-UPCHECKLIST FOR FAN-ASSISTED
EMISSIONS SETTINGS AND TEST INFORMATION
Nominal Factory Recommended Settings
RAYPAK PRODUCTS ADB, HI-DELTA& MVB
LIMITED PARTS WARRANTY ADVANCED DESIGN BOILER
HEAT EXCHANGER WARRANTY
BLUFF HEAD BODY BURNER WARRANTY
ADDITIONAL WARRANTY EXCLUSIONS
