Raypak HD401 - Page 52

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www.raypak.com

Raypak, Inc., 2151 Eastman Avenue, Oxnard, CA 93030 (805) 278-5300 Fax (805) 278-5468

Litho in U.S.A.

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Table of Contents3
Warnings4
Pay Attention to These Terms4
Before Installation5
Product Receipt5
Model Identification5
Ratings and Certifications5
Installations at Elevation5
Component Locations6
General Information7
General Safety8
Time/Temperature Relationships in Scalds8
Installation9
Installation Codes9
Equipment Base9
Clearances9
Combustion and Ventilation Air11
Conventional Combustion Air Supply11
Water Piping12
Relief Valve Piping13
Hydronic Heating14
Domestic Hot Water Piping16
Gas Supply17
Electrical Power Connections18
Hot Water20
Venting21
- Venting Installation Tips25
- Venting Configurations25
Outdoor Installation31
Controls32
Ignition Control Module32
Outdoor Air Reset Temperature Controller (Standard for HD101-HD301 Type H)32
Digital Temperature Control (Optional)34
High Limit (Manual Reset)34
High Limit - Auto Reset (Optional)34
Flow Switch35
High and Low Gas Pressure Switches (Optional)35
Low Water Cut off (Optional)35
Wiring Diagram-Models Hd101-Hd151 Type Wh36
Wiring Diagram-Models Hd101-Hd151 Type H37
Wiring Diagram-Models Hd201-Hd401 Type Wh38
Wiring Diagram-Models Hd201-Hd401 Type H39
Hd Troubleshooting40
Pre-Start-Up41
Filling System-Heating Heaters41
Domestic Hot Water Heaters41
Inspect Venting System41
Pre-Start-Up Check41
Initial Start-Up41
Tools Needed41
Preparation for Start-Up41
Start-Up42
Main Burner Adjustment43
Gas Valve Adjustment43
Gas Type Conversion on Valve44
Safety Inspection44
Follow-Up44
Post Start-Up Check45
Air Filter Inspection/Removal46
Heat Exchanger Removal46
Maintenance47
Suggested Minimum Maintenance Schedule47
Appendix48
Inside Combustion Air Contamination48
Important Instructions for the Commonwealth of Massachusetts49

Raypak HD401 - Page 52

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