14
14 SEER SPLIT SYSTEM HEAT PUMP ORIFICE USAGE
Defrost Test Procedure for 624656
1. Jumper “T2” to “DFT” at the test terminals.
2. With unit running in heat mode, short the
“TEST” terminal to the common terminal near
it. This will speed up the board and cause
it to enter defrost mode in 5/10/15 seconds
depending on the defrost time selection.
Compressor delay will not function during
speed-up.
3. This test will end in 5 seconds if the “TEST”-
common short is not removed.
4. Remove both the short and the “T2” to “DFT”
jumper to terminate the defrost cycle. The
30 second compressor delay should operate
normally.
5. Test is complete, reset thermostat to home
owner preference.
Optional Equipment — A functional checkout
should be performed in accordance with
the checkout procedures supplied with the
equipment.
Adjustment of Refrigerant Charge:
CAUTION:
Split system heat pump equipment
contains liquid and gaseous refrigerant
under pressure. Adjustment of
refrigerant charge should only be
attempted by qualified, trained
personnel thoroughly familiar with the
equipment. Under no circumstances
should the homeowner attempt to
install and/or service this equipment.
Failure to comply with this warning
could result in equipment damage,
personal injury, or death.
NOTE: The following Refrigerant Charging
Charts are applicable to listed assemblies of
equipment and at listed airfl ows for the indoor
coil. Assemblies of indoor coils and outdoor units
not listed are not recommended.
Model
Number *T4BE
Restrictor Bore Size (in.)
System Charge
R-410A (oz.)Outdoor
018K .037 166
024K .041 166
030K .041 168
036K .055 174
042K .055 256
048K .062 246
060K .067 230
NOTE: Indoor refrigerant metering device is TXV for all models.
To Next Page
Loading...
Need help?
General
