Airmark GBW Series, Руководство по установке

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Below are brief descriptions of the key components of the unit and in-
stallation. This manual only provides general idea of the components
and recommended practices. The installer should use best judge-
ment to ensure safe installation and operation of the unit.
1. Room Thermostat- This is the device that controls that operation
of your heating and/or cooling unit. It senses the indoor temperature
and signals the equipment to start or stop maintaining the tempera-
ture you have selected for your comfort. The room thermostat should
be in a central, draft free inside wall location for best operation. Do
not place any heat producing apparatus such as lights, radio, etc.,
near the thermostat as this will cause erratic operation of the comfort
system. The thermostat can accumulate dust or lint which can affect
its accuracy. It should be cleaned annually.
2. Air Filter(s) - All central air moving comfort systems must include
air filter(s). These filters will be located either in the equipment or in
the return air duct system upstream of the equipment. The filter(s)
removes dust and debris from the air thus helping to keep your air-
conditioned space clean. More important, the filter keeps dust and
debris from collecting on the heat transfer surfaces thus maintaining
optimum equipment efficiency and performance. Inspect and clean
or replace filters every month. This routine maintenance procedure
will pay big dividends in reduced operating cost and reduced service
expense. Never operate comfort equipment without filter(s).
3. Fuses and/or Circuit Breakers- This comfort equipment should be
connected to the building electric service in accordance with local
and National Electric codes. This electrical connection will include
over-current protection in the form of circuit breakers. Have your
contractor identify the circuits and the location of over-current protec-
tion so that you will be in a position to make inspections or replace-
ments in the event the equipment fails to operate.
18. Operation and Maintenance
5. Periodic Checkup and Service- This product is designed to pro-
vide many years of dependable, trouble-free comfort when properly
maintained. Proper maintenance will consist of annual check-ups
and cleaning of the internal electrical and heat transfer components
by a qualified service technician. Failure to provide periodic checkup
and cleaning can result in excessive operating cost and/or equip-
ment malfunction.
6. Lubrication- Direct drive blower motors are equipped with perma -
nently lubricated bearings and do not require further lubrication.
7. Air filter replacement: An air filter can restrict the airflow of air to
the fan coil if it is not cleaned or replaced periodically. When replac-
ing the air filter, always replace with the same type and size as origi -
nally furnished with the unit.
4. a) Do not store combustible materials
or use gasoline or other flammable liquids
or vapors in the vicinity of this appliance.
b) Do not operate the comfort equipment with panels re-
moved.
c) Have your contractor point out and identify the various
cut-off devices, switches, etc., that serve your comfort
equipment. There is a main switch that will cut off energy to
your heating system. Know where they are so that you may
cut off the flow of energy in the event of overheating.
!
WARNING
1. Equipment Sizing Select an air handler with a heating output
that exceeds the space heating loss of the structure and that has a
cooling coil sized to match the outdoor condensing unit. Note: The
heating output of the air handler or hot water coil will not be greater
than the output of the selected hot water heater. Therefore, if the
water heater is undersized the heating BTUH of the air handler will
be LESS than its rated output.
2. Water Heater Selection ‘
The following sizing information should only be used as a basic
guide to adequate water heater sizing because of variations in each
family’s domestic hot water requirements. For additional assistance
in water heater sizing contact a professional engineer. Proper water
heater sizing should consider both the gallon capacity AND the BTU
input of the water heater.
a. To determine water heater GALLON CAPACITY: A minimum
40-gallon high recovery and/or high efficiency gas or oil-fired
water heater is recommended. The following volume-sizing
guide is satisfactory in most areas of the country (Table 19-1):
19. GFW Hydronic Related General Information
b. To determine water heater BTU INPUT (assumes a water
heater recovery efficiency of 76%): For mild climates: BTU
INPUT=structure’s heat loss x 1.51. For colder climates: BTU
INPUT=structure’s heat loss x 1.58.
3. Pump Replacement
a. Disconnect electrical power to the unit before servicing.
b. Remove access door to reveal pump. Close supply valve (“A”)
and return valve (“B”). Open the air bleed valve to de-pressur-
ize the system and drain water.
c. Remove the metal pump housing by loosening the four screws
on the pump. DO NOT UN-SOLDER PUMP.
d. Replace the new pump housing assembly and reconnect com-
ponents to the pump. Before assembling, make sure that the
runner on the o-ring is in place on the pump housing.
e. Purge the system of the air as described earlier and re-connect
the electrical power.
Table 19-1.