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GROUNDING INSTRUCTIONS
This boiler must be grounded in accordance with the National
Electrical Code, Canadian Electrical Code and/or local codes.
Boiler is polarity sensitive; correct wiring is imperative for proper
operation.
This boiler must be connected to a grounded metal, permanent
wiring system, or an equipment grounding conductor must be
run with the circuit conductors and connected to the equipment
grounding terminal or lead on the boiler.
INLET WATER CONSIDERATIONS
Circulating water through the boiler and to the remote storage
tank (if applica ble) is accomplished by a pump on XW models
only. For hot water heating systems using the XB model, the
circulating pump is NOT provided on standard models (optional)
and must be eld installed.
CORRECT GAS
Make sure the gas on which the boiler will operate is the same as
that speci ed on the boiler rating plate. Do not install the boiler if
equipped for a different type of gas; con sult your supplier.
PRECAUTIONS
If the unit is exposed to the following, do not operate until all
corrective steps have been made by a qualied service agent:
1. Exposure to re.
2. If damaged.
3. Firing without water.
4. Sooting.
If the boiler has been exposed to ooding, it must be replaced.
LIQUEFIED PETROLEUM GAS MODELS
Boilers for propane or liqueed petroleum gas (LPG) are different
from natural gas models. A natural gas boiler will not function safely
on LP gas and no attempt should be made to convert a boiler from
natural gas to LP gas.
LP gas must be used with great caution. It is highly explosive
and heavier than air. It collects rst in the low areas making its
odor difcult to detect at nose level. If LP gas is present or even
suspected, do not attempt to nd the cause yourself. Leave
the building, leaving doors open to ventilate, then call your gas
supplier or service agent. Keep area clear until a service call
has been made.
At times you may not be able to smell an LP gas leak. One
cause is odor fade, which is a loss of the chemical odorant that
gives LP gas its distinctive smell. Another cause can be your
physical condition, such as having a cold or diminishing sense
of smell with age. For these reasons, the use of a propane gas
detector is recommended.
If you experience an out of gas situation, do not try to relight
appliances yourself. Call your local service agent. Only trained
LP professionals should conduct the required safety checks in
accordance with industry standards.
HIGH ALTITUDE INSTALLATIONS
Rated inputs are suitable up to 2000 feet (610 m) elevation. Consult
the factory for installation at altitudes over 2000 feet (610 m).
FIELD INSTALLED COMPONENTS
When installing the boiler, the follow ing compo nents must be
installed:
• Circulating Pump (Hyd ronic)
• Remote Temperature Sensor/Header Sensor
• Storage Tank (Temperature & Pressure Relief Valve)
GENERAL SAFETY