1MB Pool & spa heater
INSIDE COVER - GENERAL & PERFORMANCE SPECIFICATIONS
2 PART ONE - USER'S OPERATING INSTRUCTIONS
2 Start-up procedures
2 Safety before start-up
3 Operating models 055, 105 and 155
4 Operating models 185, 265 and 405
5 Caution notice
5 Maintenance and care procedure
6 Pool & spa water chemistry
6 Cold weather operation
6 Winterizing the pool & spa heater
PART TWO - INSTALLATION/SERVICE INSTRUCTIONS
7 General notices
INSTALLATION INSTRUCTIONS
7 Installation of the pool & spa heater
11 Outdoor heaters
11 Indoor heaters
14 Combustion air
15 Gas supply connections
16 Plumbing for water connections
16 Left side water connection conversion
19 Electrical wiring
SERVICING INSTRUCTIONS
22 General location of controls
24 Temperature controls
25 Pressure switch
26 High limit
26 Pilot safety
26 Burner drawer removal
26 Gas valve removal
26 Main burner & orifi ce removal
26 Pilot removal & cleaning
27 Heat exchanger removal
27 Control immersion well replacement
27 Tube cleaning
28 Desooting procedure
28 Combustion chamber removal
28 Unitherm governor replacement
TROUBLE SHOOTING GUIDE
29 Mechanical - All models
32 Electrical models 055, 105 & 155.
34 Electrical models 185, 265 & 405.
REPLACEMENT PARTS
36 Replacement parts list - 055
38 Replacement parts list - 105
40 Replacement parts list - 155
42 Replacement parts list - 185, 265 & 405
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