Service Handbook
COMMERCIAL GAS HIGH EFFICIENCY WATER HEATERS
500 Tennessee Waltz Parkway
Ashland City, TN 37015
MODELS: SUF 60 thru 120 SUF 100 thru 250 SUF 130 thru 500
SERIES 100, 101 and 104.
SERVICING SHOULD ONLY BE PERFORMED BY A QUALIFIED SERVICE AGENT
PRINTED IN THE U.S.A. 0511 | 198152-003 |
Commercial GAS High Efficiency Water Heaters
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Table of Contents
Qualifications
Introduction
Tools Required
General Information
GAS Pressure Specifications
Adjustment Procedure GAS Pressure SUF 120 and 150 Models
Installation Quick Tips SUF 120 and 150 GAS Pressure
Page
Important Note
Installation Quick Tips SUF 199 and 250 GAS Pressure
Adjustment Procedure GAS Pressure SUF 300, 400
Installation Quick Tips SUF 300, 400, 500 GAS Pressure
Installation Quick Tips SUF 300, 400
Ultra Force Venting
Installation Venting Category and Materials
Vent Length Table Equivalent Feet Meters 120 through
Venting Tables SUF 120
Vent Length Table Equivalent Feet Meters 300, 400
Concentric Venting
Can I Drain this Condensation to the Floor DRAIN?
Vent Condensation
What about the PH Values of Condensate and Soda POP?
What does the PH Scale MEAN?
Power Vent
Direct Vent
Vent Termination Direct Vent ALL Models
PVC Elbow
Direct Venting ALL Models
Control Overview
Set Point
Status Icon Description
Action
Adjusting Tank Temperature Operating SET Point Differential
Display Action
Display
Press Update to accept the change or Cancel to reset it
Changing the Display Units
Press Update to accept the change or Cancel to reject it
Example of a Warning
Example of a Fault Advanced Diagnostic Information
To get to the current fault information screen, press Menu
Access to the Current Fault or Warning
Press the Down button for more information
Fault Codes
Viewing Information About the Water Heater
Typical Sequence
Control Sequence Typical ALL Models
Control Sequence Flow Chart
Controls Central Control Board CCB
This is the back of the UIM
Controls GAS Valve SUF
Controls GAS Valve SUF 199
High Altitude Installation
GAS Orifice
Controls GAS Valve SUF 199
Orifice Chart SUF 300
Controls GAS VALVE, Orifice Chart SUF 300/400
Orifice Chart SUF
Controls GAS VALVE, Orifice Chart SUF
Blower Proving Switch
Controls Pressure Switches ALL Models
Blocked Outlet Proving Switch
Blocked Inlet Proving Switch
Controls Pressure Switches SUF 120 Through
Controls Pressure Switches SUF 300, 400
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HOT Surface Igniter
HOT Surface Igniter / Flame Sensor / Control Timing
Flame Sensor
Control Timing
Model High Speed Hz Low Speed Hz
Blower Speed Control SUF 199
Variable Frequency Drive SUF 400
Voltage Frequency Speed Instructions VFD Model SUF
Variable Frequency Drive Blower Speed and Pressure Readings
User Interface Modul
Wiring Diagram SUF 120
User Interface Module
Wiring Diagram SUF 400
Tennessee Waltz Parkway Ashland City, TN
