Amana ASXC16, Обслуживание и устранение неисправностей, Страница: 47 / 92

SERVICING
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Max CFM is as follows:
3 Ton Models 1400 CFM
4 Ton Models 1760 CFM
5 Ton Models 2200 CFM
For Communicating Outdoor Units: Main airflow
adjustment is not required. The Outdoor unit will determine
the appropriate amount of indoor airflow to request. Airflow
Trims can be made if desired.
For Non-Communicating outdoor units, determine the
proper airflow (based off tonnage of) the outdoor unit.
Most cooling systems are designed to work with airflow
between 350 and 450 CFM per ton. 400 CFM/TON is
the industry standard. Once desired airflow has been
determined, see Tonnage / Airflow table to identify the
Tonnage Selection that is closest to the desired airflow.
This table is based on 400 CFM per ton where Airflow =
(400 CFM) x (Selected Tonnage).
Example: if 1520 CFM is the desired airflow the Tonnage
Selection that matches this is 3.8
Enter the Tonnage (ton) menu either by using the on board
push buttons or phone application and select the Tonnage
Selection you identified.
Note: Trim is also available if additional adjustment is
required.
Checking Heater Limit Control(s)
Each individual heater element is protected with a limit
control device connected in series with each element to
prevent overheating of components in case of low airflow.
This limit control will open its circuit at approximately 150°F.
WARNING
High Voltage!
Disconnect all power before servicing
or installing. Multiple power sources
may be present. Failure to do so may
cause property damage, personal injury
or death.
1. Remove the wiring from the control terminals.
2. Using an ohmmeter, test for continuity across the
normally closed contacts. No reading indicates the
control is open - replace if necessary.
IF FOUND OPEN - REPLACE - DO NOT WIRE AROUND.
Checking Heater Fuse Link
(Optional Electric Heaters)
Each individual heater element is protected with a one time
fuse link which is connected in series with the element.
The fuse link will open at approximately 333°.
WARNING
Disconnect ALL power before servicing.
1. Remove heater element assembly so as to expose fuse
link.
2. Using an ohmmeter, test across the fuse link for
continuity - no reading indicates the link is open.
Replace as necessary.
NOTE: The link is designed to open at approximately
333°F. DO NOT WIRE AROUND - determine reason for
failure.
Checking Heater Elements
WARNING
Disconnect ALL power before servicing.
1. Disassemble and remove the heating element.
2. Visually inspect the heater assembly for any breaks in
the wire or broken insulators.
3. Using an ohmmeter, test the element for continuity - no
reading indicates the element is open. Replace as
necessary.
Refrigeration Repair Practice
DANGER
Always remove the refrigerant charge in a
proper manner before applying heat to the
system.
When repairing the refrigeration system:
WARNING
High Voltage!
Disconnect all power before servicing
or installing. Multiple power sources
may be present. Failure to do so may
cause property damage, personal injury
or death.