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Rheem
Swimming Pool Heater
P-M337
Rheem P-M337 User Manual
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31
SECTION
4
-
SERVICING
INSTRUCTIONS
GENERAL LOCA
TION
OF
CONTROLS
A
TMOSPHERIC
LO
NOx
AFT Thermostat
Circuit Board
Drain Plug
(Located in
rear
header)
Unitherm Governor
Mounted On
T
op
Of Header
HL1 -
High
Limit
H
L2 -
High
Limit
Pressure Switch
T
emp Sensor/Well
Pilot
Roll-Out
Switch
Gas V
alve
T
ransformer
Drain Plug
Drain Plug
(Located in
rear
header)
Unitherm
Governor
Mounted On
T
op
Of Header
HL1 -
High
Limit
HL2 -
High
Limit
Pressure Switch
T
emp
Sensor/Well
Pilot
Roll-Out
Switch
(Manual)
Gas V
alve
T
ransformer
Draw Plug
Air
Switch
Blower
Hose
Blower
AFT Thermostat
Circuit Board
30
32
Table of Contents
Default Chapter
2
Water Chemistry
2
Table of Contents
3
4 Section 1
4
Part One
4
Owner's Operating Instructions
4
Start-Up Procedures
4
Before Start-Up
4
Lighting Instructions & Shut-Off Procedures
5
Shut-Off Procedure
5
Millivolt System Manually Lighted Pilot
5
Electronic Ignition System
6
Operating Instruction & Shut-Off Procedures
6
After Start-Up
7
7 Section 2
7
Caution
7
8 Section 3
8
Automatic Chlorinators and Chemical Feeders
8
Maintenance & Care Procedures
8
Pool & Spa Water Chemistry
8
Cold Weather Operation
9
Winterizing the Pool & Spa Heater
9
Model & Serial no Locations
10
Part Two
10
Code Requirements
11
Installation & Service Instructions
10
11 Section 3
11
11 Section 2
11
Receiving Equipment
11
10 Section 1
11
General Specifications
11
Installation Instructions
11
Clearances
12
Outdoor Heater Installation
12
Florida and Texas Building Codes
14
Indoor Heater Installation
15
Outdoor Stack/Indoor Stack
15
Combustion and Ventilation Air
18
Vent Piping
18
Gas Supply Connections
19
Gas Pressure Adjustment Locations
20
Gas Pressure Regulator
20
Pipe Sizing for Gas Connections
20
Flow Rates
21
Heat Exchanger Pressure Drop Tables
21
Cast Iron Headers
22
Polymer Headers
22
Unitherm Governor Operation
22
Auxiliary Bypass Valve Adjustment
23
External Auxiliary Bypass Valve
23
Internal Automatic Bypass Valve
23
Pressure Relief Valve Installation
23
Plumbing-Water Connections
24
Heat Exchanger Reversal Procedure
25
Advanced Flame Technology (AFT) Models
26
Electrical Wiring
26
Millivolt Models
26
Transformer Wiring
27
Wiring Diagram - Millivolt (Mechanical Therm.)
28
Servicing Instructions
31
General Location of Controls
31
Control Adjustments - AFT Models
32
Control Adjustments - Millivolt Models
32
Control Panel Removal
32
Status and Diagnostics
35
Activating the Remote
36
Remote Control Installation and Operation
36
Remote Operation
36
Remote Control Wiring
37
Flame Roll-Out Safety Switch
38
High Limits
38
Time Clock/Fireman's Switch
38
Water Pressure Switch
38
Burner Tray Removal (ATM)
39
Gas Valve Removal (ATM)
39
Main Burner and Orifice Removal (ATM)
39
Pilot Removal and Cleaning
39
Pilot Safety
39
Combustion Chamber Removal
40
Desooting Procedure
40
Heat Exchanger Removal
40
Immersion Well Replacement
40
Tube Cleaning Procedure
40
Electrical
41
Flame Roll-Out Safety Switch
41
Lo Nox Pool Heaters
41
Operation
41
Start-Up Procedures
41
Visual Inspection
41
Unitherm Governor (U.G.) Replacement
41
Burner Tray Removal
42
Combustion Blower Removal
42
Troubleshooting
43
Gas Valve Removal
42
Main Burner and Orifice Removal
42
Pilot Removal
42
Mechanical
43
Electrical - Standing Pilot Millivolt
44
Electrical - Electronic Ignition IID
45
Control Logic - Flow Chart
46
Replacement Parts
47
Other manuals for Rheem P-M337
Brochure
3 pages
Technical Data
2 pages
Limited Warranty
2 pages
5
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Rheem P-M337 Specifications
General
Brand
Rheem
Model
P-M337
Category
Swimming Pool Heater
Language
English
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