Heating Mode; Defrost Mode; Emergency Heat Mode; Routine Maintenance - Payne PH3Z Owner's Manual

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Fig. 2--Payne Non-Programmable Thermostat
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Fig. 3--Main Electrical Disconnect
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Tile I_)llowing are typical conditions that add extra heat and/or humidity to your borne. Your heat pump will work longer to keep your borne
coml_)rtable under these conditions:
l. Entrance doors are frequently opened and closed
2. Laundry appliances are being operated
3. A shower is running
4. Mow than the usual number of people are present in the home
5. More than the normal number of electric lights are in use
6. Drapes are open on the stmny side of the home
C. Heating Mode
With the SYSTEM or MODE control of your indoor thermostat set to HEAT, your heat pump will run in beating mode until roon] temperature
is raised to the level you have selected. Of course, your heat pnmp will have to operate lk_rlonger periods to maintain a colnlk_rtable environment
on cooler days and nights than on moderate ones.
D. Defrost Mode
When your heat primp is providing heat to your home and the outdoor temperature drops below 45°F, moisture may begin to fl'eeze on the surface
of the coil. If allowed to build tap, this ice would impede airflow across the coil and reduce the amount of heat absorbed from the outside air. So,
to maintain energy-efHeient operation, your heat pump has an automatic defrost mode. The defl'ost mode starts at a preset time interval of 60
minutes. Del)'ost will start at the preset time only if the ice is sul]_cient to interlere with normal beating operation. Alter the ice is melted l)'om
the coil, or after a nmxinmm of 10 minutes in dei)'ost mode, the unit automatically switches back to normal beating operation.
Do not be alarmed if steam or l_)g appears at the outdoor unit during del)'ost mode. Water vapor from the melting ice may condense into a mist
in the cold outside air. During certain weather conditions such as heavy snow and l)'eezing rain it is not uncommon lot ice to build up on the unit
grille. This is normal Rn"these weather conditions. Do not attempt to remove the ice l)'om the unit grille. This eonclition will not aflcct the proper
limction of the unit and will clear a lew days.
E. Emergency Heat Mode
This allows your supplemental beating source to keep your home or of lice warm until your heat pmnp can be serviced. Also, if the electricity to
your beat pump has been o11" l or more than 30 minutes, switch your themaostat to EHEAT mode bel_re restarting your heat pump. Leave the system
in EHEAT mode lor an amount of time equal to the power outage. It is not necessary to exceed 12 hrs. (If you cannot determine bow long the
power has been olT, leave the system in EHEAT mode I_)r 8 hrs.)
PERFORMING ROUTINE MAINTENANCE
With the proper maintenance and care, your heat pump will operate economically and dependably. Maintenance can be accomplished easily by
rcli_rring to the liHlowing directions. However, beli_re perlbrming maintenance, consider these important sali_ty precautions:
Z_ WARNING: ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury and/or death.
Disconnect all electrical power to the indoor air handier or furnace before removing access panels to perform any
maintenance. Disconnect power to both the indoor and outdoor units. Note: There may be more than 1 electrical disconnect
switch.
Z_X CAUTION: PERSONAL INJURY HAZARD
Failure to follow this caution may result in personal injury.
Although special care has been taken to minimize sharp edges in the construction of your unit, to avoid injury be extremely
careful when handling parts or reaching into the unit.
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