Water Heater Installation Check List - Bradford White UCG100H3993N Service Manual

Water Heater Installation Check list

Product Handling - Carefully uncrate the heater. Move in place with a hand truck (Do not use the venting pipes for
handles).
Electrical Requirements - Make sure there is 120 volts line voltage. Line voltage must be properly polarized. Adequate
ground supplied to the heater.
Venting Requirements - All venting must stay within the required lengths and diameter (see table below). Proper support
of the venting pipe is a MUST (every 5ft vertical and 3ft horizontal). Termination must be located to prevent re-circulation
of flue gases.
Gas Requirements - Gas piping sized adequately, ¾" . Install a properly sized regulator (if unknown, assure an adequate
volume of gas is available). 7" W.C. is required when the unit is running. Gas pressure must stay below 14" W.C. static
pressure. Pressure drops between static pressure and operating flow should be less than 3" W.C.
Service/Mechanical Room - Provide adequate space for servicing heater. Leave enough overhead room to remove the
anode rods for servicing (18" min.).
Model Number
UCG100H399
UCG80H399
WARNING! The UCG(80,100)H399 model is not approved for 2 inch diameter intake vent pipe. Venting with 2 inch pipe
may result in damage to the water heater or cause an unsafe condition. DO NOT use 2 inch Vent or Air Intake Pipe!
Determining required intake vent length
1. Determine the total length of straight vent pipe (in feet) required for the intake.
2. Add 5 feet of venting for every 90° elbow.
3. Add 2 ½ feet of venting for every 45° elbow.
4. Total intake vent length cannot exceed "Max Intake Vent Length" on the venting table shown
above.
Example of Total Intake Vent Length for UCG100H399 installation:
A 3" venting system has a total of two 90-degree elbows and a total straight pipe length of 10 feet.
Equivalent vent length for elbows: 2 x 5 feet = 10 feet.
Total equivalent intake vent distance = 10 feet + 10 feet = 20 feet total equivalent vent length. This is
below the maximum allowed distance of 25 feet for this model using 3" vent.
The "metal/atmospheric" exhaust system of this unit must follow the National Fuel Gas code.
Vent Tables
(Intake Only)
Max Intake Vent Length (feet) 3"
25
25
39
Max Intake Vent Length (feet) 4"
50
50
39