![](/images/new-backgrounds/1053791/5379129x1.webp)
VENT CONDENSATION
6” PIPE FIELD SUPPLIED
6” x 4” REDUCER FIELD SUPPLIED ![](/images/new-backgrounds/1053791/5379129xi2.webp)
4” PIPE FIELD SUPPLIED
EXHAUST ELBOW ![](/images/new-backgrounds/1053791/5379129xi3.webp)
VENT CONNECTION
FACTORY INSTALLED
VENT (EXHAUST) CONNECTION
Failure to properly install the drain line on the condensate elbow will result in a water heater shut down and a “blocked exhaust” fault message.
The average dew point of natural gas flue products is 127°F. Propane flue products is 119°F. With 70°F ambient air temperature and 180°F stored water temperature, exhaust gas will be approximately 140°F.
Q. CAN I DRAIN THIS CONDENSATION TO THE FLOOR DRAIN?
A. The “Corrosion Resistance of Cast Iron Soil Pipe” by the Ductile Metals Association (formally the Cast Iron Soil Pipe Institute) states that: “Internal corrosion of cast iron soil pipe and fittings can be caused by strong acids or other reagents having an acidity of pH 4.3 or less if allowed to contact cast iron pipe for an extended period of time without sufficient dilution to raise the pH valve about 4.3. By avoiding low pH discharges, internal corrosion problems can be limited or eliminated, assuring the owner many years of service.”
Q. WHAT ABOUT THE PH VALUES OF CONDENSATE AND SODA POP?
A. The pH of the SUF condensate average 4.5 which is approximately 4 times less concentrated than the limit of 4.3 recommended by the DMA. Any water flow in the drain rapidly dilutes the condensate even more. A can of leading carbonated cola drink measured a pH of 2.5 which is 300 times more concentrated than the SUF condensate.
Q. WHAT DOES THE PH SCALE MEAN?
A. The PH value is a measure of acidity or alkalinity. A pH of 7 is neutral. Numbers from 7 to 1 indicate increasing acidity and numbers from 7 to 14 indicate increasing alkalinity. The pH scale is similar to the Richter scale used to measure earthquakes. Each number indicates a change of 10 times the concentration of the previous value. A pH-6 is 10 times more concentrated than a pH-7, a pH-5 is (10x10) 100 times pH-7 and pH-4 is (10x10x10) 1,000 times pH-7, etc.
Q. WHAT ABOUT CONDENSATE NEUTRALIZERS?
A. Condensate neutralizers are usually not necessary. A condensate neutralizer is easy to make by filling a short length of 2" or 3" PVC pipe with landscape marble chips, capping it and installing it in series with the condensate drain of the equipment. Most commercial neutralizers are off the market because of poor demand for the product. Condensation from the exhaust vent piping and tank internal flue way must be allowed to drain. A “blocked flue” indication will often be your first indication that condensate is not draining.
Servicing should only be performed by a Qualified Service Agent | 13 |
Commercial GAS High Efficiency Water Heaters
Page
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
Venting Tables SUF 120
Vent Length Table Equivalent Feet Meters 120 through
Vent Length Table Equivalent Feet Meters 300, 400
Concentric Venting
What does the PH Scale MEAN?
Vent Condensation
Can I Drain this Condensation to the Floor DRAIN?
What about the PH Values of Condensate and Soda POP?
Power Vent
Direct Vent
Vent Termination Direct Vent ALL Models
PVC Elbow
Direct Venting ALL Models
Control Overview
Set Point
Status Icon Description
Display
Adjusting Tank Temperature Operating SET Point Differential
Action
Display Action
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
Access to the Current Fault or Warning
To get to the current fault information screen, press Menu
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
High Altitude Installation
Controls GAS Valve SUF 199
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
Blocked Inlet Proving Switch
Controls Pressure Switches ALL Models
Blower Proving Switch
Blocked Outlet Proving Switch
Controls Pressure Switches SUF 120 Through
Controls Pressure Switches SUF 300, 400
Page
Control Timing
HOT Surface Igniter / Flame Sensor / Control Timing
HOT Surface Igniter
Flame Sensor
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