Catalog NO. RM-001
Important Warning
Electric Code ANSI/NFPA
Index
Series GB For circulating tank systems Through 1826 Mbtuh
Construction Features
Specification Data
Page
Shipping
Receivingequipment
Installation Regulations
Water Flow
Water Conditions
Baserequirements
Combustible Floor Base
Boiler Part
Protected Surfaces
Combustibleconstructionclearances
Recommended Minimum AIR Openings
Combustion and Ventilation AIR Supply
MODEL181-399
Model
Models 512
MODELS926-1758
Indoorheaters
Models
MODELS181-399
Heater Before Heater After Drafthood Installation
Page
Fig. #7043.1
Vent Damper Installation
Power Venting
Models 136 Through 264 Where Required Location
Outdoorwaterheaters
Normal Operation Summary
Mounting
BTU/CF
Gas Natural Propane
SP. GR
Pipe Sizes
Fig.#8185.1
Test piping as follows
Water
Cold Water Supply
GPM NPT
Tanktemperaturecontrol
HOT Water Supply Heater
Series with 115 Volt Supply to the Heater
Installation Water Heater Plumbing
Piping DIAGRAM-1 Heater 1 Tank Thermostat Supplied
Sequenceofoperation
Piping Must be Equal Between Tees and TANKS. Notes
Piping DIAGRAM-1 Heater 2 Tank
Fig. # 8067-RHEEM
Piping DIAGRAM-1 Heater 3 Tank
Piping DIAGRAM-1 Heater 4 Tank
Piping DIAGRAM-2 Heater 1 Tank Special Thermostat and Well
Description of Controls in General
Energy Saving Pump Control
Electronicignition
Tankstat Temperature Control
Flow Switch
Highlimit
Single Stage Tankstat
Electrical
START-UP
ON-OFFOPERATION
Scalding
TIME/TEMPERATURE Relationships in Scalds
For Your Safety Read Before Operating
To Shut Down
Close all manual gas valves. Turn off electric power
Inspectionand Maintenanceprocedures
Monthly
Six Months
Service Assistance
System Shut Down Procedure
Burner Inspection
Venting System Inspection
Trouble Shooting
Problem
If okay replace ignition module
Start
Electrical Electronic Ignition IID Models 512
Wiring Diagram KEY
Wiring Diagrams
Wiring Diagram Models 512
Wiring Diagram Models 331
Wiring Diagram Models 726
Wiring Diagram Models
Fig. # 1967e
Wiring Diagram Model 825 Wiring Diagram Models 962
Model 136 GB only
Replacement Parts Lists
Model 136 GB only
Models 181, 264, 331, 399 GB
Page
Models 181, 264, 331, 399 GB
Models 181, 264, 331,339 GB
Models 512, 627, 726, 825 GB
Models 512, 627, 726, 825 GB
Models 512, 627, 726, 825 GB
Models 926-1826 GB
Models 926-1826 GB
Models 926-1826 GB