WHL-038 Rev. 1.29.16
39
D. Boiler Gas Valve
Figure 28 -
Gas Valve - If Necessary, Use #40 Torx to Adjust Offset and Hex to Adjust the Throttle
Strain on the gas valve and fittings may result
in vibration, premature component failure
and gas leakage, and result in fire, explosion,
property damage, severe personal injury, or
death.
Adjustments to the throttle screw or
offset may only be made by a qualified gas
technician using a calibrated combustion
analyzer capable of measuring CO2 and CO.
Failure to follow this instruction could result
in fire, explosion, property damage, severe
personal injury, or death.
Ensure that the high gas pressure regulator is
as least 6 – 10 feet upstream of the appliance.
Failure to do so could result in substantial
property damage, severe personal injury, or
death.
Figure 29 - Ensure the Damper Actuator is Set to “0” Position
Part 9 - Start-Up Preparation
A. Check / Control Water Chemistry
Chemical imbalance of your water can cause severe damage
to your boiler and associated equipment, and may also
affect efficiency. You may have to have your water quality
professionally analyzed to determine whether you need to
install a water softener. It is important that the water chemistry
on both the domestic hot water and central heating sides are
checked before installing the boiler, as water quality will affect
the reliability of the system. Outlined below are those water
quality parameters which need to be met in order for the
system to operate efficiently for many years. Failure of a heat
exchanger due to lime scale build-up on the heating surface,
low pH or other imbalance IS NOT covered by the warranty.
Thoroughly clean and flush any system that has used glycol
before installing the boiler. Provide the customer with a
material safety data sheet (MSDS) on the fluid used.
To assure extended service life, it is recommended to test water
quality prior to installation. Listed below are some guidelines.
Do not use petroleum-based cleaning or sealing compounds
in the boiler system. Damage to elastomer seals and gaskets
in the system could occur, resulting in substantial property
damage.
Sodium less than 20 mGL
Water pH between 6.0 and 8.0
1. Maintain boiler water pH between 6.0 and 8.0. Check with
litmus paper or have it chemically analyzed by a water treatment
company.
2. If the pH differs from above, consult local water treatment
company for treatment needed.
Hardness less than 7 grains
Consult local water treatment companies for unusually hard
water areas (above 7 grains hardness).
Chlorine concentration less than 100 ppm
1. Using chlorinated fresh water should be acceptable since
drinking water chlorine levels are typically less than 5 ppm.
The boiler is equipped with a damper actuator. This actuator
is modulated by the system control to manage boiler
combustion. It is important that the damper actuator selector
switch is set to “0”. See Figure 29 for correct positioning.
Ensure the damper actuator selector switch is set to “0”.
Turning the damper actuator selector switch to “1” will result
in improper boiler operation. Service calls to repair this
condition ARE NOT covered by warranty.