F55: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
15
Leak Dissipation Mode
Thermostat energizes appropriate signals to the dissipation board based
on operation mode. The dissipation board energizes G output, which
energizes the fan relay on the PCB to complete the circuit to the indoor
blower motor. The dissipation board opens switches for W and Y. This
de-energizes signals going to heat and outdoor compressor.
Start-up Procedures
Refer to outdoor unit Installation Instructions for system start-up
instructions and refrigerant charging method details.
When charging unit, ensure your conditioned space is larger than the
minimum floor area shown in Table 6. For charging quantities outside of
the range of the table, use the following equation to determine your
minimum area: A_min = 15 x Total Charge (lbs) - ft
2
.
Care and Maintenance
To continue high performance and minimize possible equipment failure,
it is essential that periodic maintenance be performed on this equipment.
Consult your local dealer as to the proper frequency of maintenance
contract.
The ability to properly perform maintenance on this equipment requires
certain mechanical skills and tools. If you do not possess these, contact
your dealer for maintenance. The only consumer service recommended
or required is filter replacement or cleaning on a monthly basis.
NOTE: Servicing the blower assembly requires the removal of two
screws that attach the blower housing to the fan deck. It is not necessary
to reinstall of these screws after service.
A221041A
Fig. 28 – Shipping Screws
Table 6 – Charge Table
Charge (lb.)
Minimum Floor
Area (sq. ft.)
Charge (lb.)
Minimum Floor
Area (sq. ft.)
4 61 15 228
5 76 16 243
6 91 17 258
7 106 18 274
8 122 19 289
9 137 20 304
10 152 21 319
11 167 22 335
12 182 23 350
13 198 24 365
14 213 25 380
CAUTION
!
PRODUCT DAMAGE HAZARD
Failure to follow this caution may result in poor unit performance
and/or product damage.
Never operate unit without a filter. Factory authorized filter kits may be
used when locating the filter inside the unit. For those applications
where access to an internal filter is impractical, a field-supplied filter
must be installed in the return air duct system.
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