Raypak 88AR-398A, Installation & Operating Instructions Manual

Page: 3 / 68

3
WARNINGS 4
Pay Attention to These Terms 4
BEFORE INSTALLATION 5
Product Receipt 5
Model Identification 6
Ratings and Certifications 6
Installations at Elevation 6
Component Locations 7
General Information 7
BOILER DIMENSIONS 8
Time/Temperature Relationships
in Scalds 9
INSTALLATION 9
Installation Codes 9
Equipment Room 10
Clearances 10
Combustion and Ventilation Air 11
Direct Vent 14
Conventional Combustion Air Supply 14
Water Piping 15
Hydronic Heating 16
System Sensor Installation 16
Applications and Modes 17
Heater Flow Rates and Pressure Drops 17
MODE 1 Water Plumbing 18
MODE 2 Water Plumbing 19
MODE 3 Water Plumbing 20
Gas Supply 21
Gas Supply Connection 21
Equivalent Pipe Length 21
Gas Supply Pressure 22
Electrical Power Connections 22
Making the Electrical Connections 23
Field Wiring Connections 24
Heating System Sensor Installation 25
Venting 28
Venting Installation Tips 31
Venting Configurations 31
Condensate Management 37
Freeze Protection 38
Controls 39
Outdoor Reset Concept 45
WIRING DIAGRAM 47
Converting Natural to Propane Gas 48
Gas Valve & Combustion Settings 49
START-UP 50
Pre Start-up 51
Pre Start-up Check 51
Initial Start-up 51
Preparation 51
Start-Up 52
Lighting Instructions 54
To Turn Off Gas to Appliance 54
TROUBLESHOOTING 55
XPak FT Error Codes 55
Heater Errors 55
Heater Faults 55
Sensor Resistance Values 55
XPak FT Fault Text 56
MAINTENANCE 58
Suggested Minimum
Maintenance Schedule 58
Preventive Maintenance
Schedule 58
Combustion Chamber Cleaning
Instructions 60
APPENDIX 61
Inside Air Contamination 61
Important Instructions for the
Commonwealth of Massachusetts 62
WARRANTY 63
START-UP CHECKLIST 64
ILLUSTRATED PARTS LIST 65
CONTENTS