INDOOR
THERMOSTAT
RETURN
AIR
FROM
TOP COVERPOWER
SOURCE
DISCONNECT
PER NEC
Fig. 2ÐTypical Installation
3.The outdoor unit must have unrestricted airflow. Do not cover the unit, lean anything against it, or stand on it. Do not allow grass clippings, leaves, or other debris to accu- mulate around on top of the unit. Maintain a
4.Your multipurpose indoor thermostat is the control center for your heat pump system. You should familiarize yourself with its proper operation. Attempting to control the system by other meansÐfor instance, switching the electrical supply power ON and OFFÐmay cause damage to the unit. (See Fig. 4 and 5.)
5.During heating, increasing the thermostat setting more than 2 degrees may cause the supplemental heaters to be turned on for a short period of time to satisfy the thermostat. Needless use of the supplementary heat reduces potential energy savings.
6.You may find that you can maintain greater personal comfort by running the fan continuously. ªAir pocketsº can form due to the structure of the house, placement of registers, etc. air pockets may be too cool or warm for your liking. Continuous fan operation minimizes any tempera- ture differences. Also, systems equipped with electronic or mechanical air cleaners and/or humidifiers offer the added benefits of having the air continuously cleaned
7.A system equipped with a heat or energy recovery ventilator offers the advantage of exhausting stale air from the home and allowing fresh air in from the outdoors while minimiz- ing heat loss.
8.Your system may also be equipped with a zoning system which allows individual control over the temperatures of separate areas of your home.
9.Your heat pump will remove humidity from your home during the cooling season. After a few minutes of operation, you should be able to see water trickle from the condensate drain. Check this occasionally to be sure the drain system is not clogged. Of course, don't expect to see much drainage if you live in a very dry environment.
10.During the heating cycle, air from your registers may seem cooler than you might first expect. This is because your heat pump delivers a constant flow of air at around 90ÊF to 105ÊF instead of sudden bursts of hot air as with a conventional furnace. This air may feel cooler because it is slightly less than your skin temperature. However, it is sufficiently warm to keep you comfortable.
11.Ice or frost will tend to form on the coil during the winter heating operation. Your heat pump is designed to automati- cally melt the ice. When in this defrost cycle, it is normal for steam or fog to rise from the outdoor unit. Do not be alarmed!
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12.Do not operate your unit in cooling mode when outdoor temperatures are below 40ÊF unless your unit was modified for
13.Do not operate your unit in heating mode when outdoor temperatures are above 66ÊF unless you set your thermostat to emergency heat mode.
WARNING: To prevent serious injury, death, or prop- erty damage, read and follow all instructions and warn- ings, including labels shipped with or attached to unit before operating your new heat pump.
OPERATING YOUR HEAT PUMP
The operation of your heat pump system is controlled by the indoor thermostat. You simply adjust the thermostat and it maintains the indoor temperature at the level you select. Most thermostats for heat pump systems have 3 controls: a temperature control selector, a FAN control, and a SYSTEM or MODE control.
I.COOLING MODE
Fig. 3ÐBryant Non-Programmable Thermostat
When operating in cooling mode, your heat pump will run in cooling mode until the indoor temperature is lowered to the level you have selected. On extremely hot days, your heat pump will run for longer periods at a time and have shorter ªoffº periods than on moderate days.
The following are typical conditions that add extra heat and/or humidity to your home. Your heat pump will work longer to keep your home comfortable under these conditions:
1.Entrance doors are frequently opened and closed
2.Laundry appliances are being operated
3.A shower is running
4.More 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 sunny side of the home
II. HEATING MODE
With the SYSTEM or MODE control of your indoor thermostat set to HEAT, your heat pump will run in heating mode until room temperature is raised to the level you have selected. Of course, your heat pump will have to operate for longer periods to maintain a comfortable environment on cooler days and nights than on moderate ones.
III.SUPPLEMENTAL HEAT
Your heat pump is your primary heating source. Your system may also be equipped with a supplemental heating source such as electric heat. On cold days and nights, your system will automati- cally turn on the supplemental heat in order to maintain the level of comfort you have selected.