2
SAFETY CONSIDERATIONS
Installation and servicing of this equipment can be hazardous due to
mechanical and electrical components. Only trained and qualified
personnel should install, repair, or service this equipment.
Untrained personnel can perform basic maintenance functions such
as cleaning and replacing air filters. All other operations must be
performed by trained service personnel. When working on this
equipment, observe precautions in the literature, on tags, and on la-
bels attached to or shipped with the unit and other safety precautions
that may apply.
Follow all safety codes. Installation must be in compliance with lo-
cal and national building codes. Wear safety glasses, protective
clothing, and work gloves. Have fire extinguisher available. Read
these instructions thoroughly and follow all warnings or cautions
included in literature and attached to the unit.
Recognize safety information. This is the safety--alert symbol
!
!
When you see this symbol on the unit and in instructions or manuals,
be alert to the potential for personal injury.
Understand these signal words: DANGER, WARNING, and CAU-
TION. These words are used with the safety--alert symbol. DAN-
GER identifies the most serious hazards which
will
result in severe
personal injury or death. WARNING signifies hazards which
could
result in personal injury or death. CAUTION is used to identify un-
safe practices which
may
result in minor personal injury or product
and property damage. NOTE is used to highlight suggestions which
will
result in enhanced installation, reliability, or operation.
Note:
Installer: This manual should be left with the equipment user.
FIRE, EXPLOSION HAZARD
Failure to follow this warning could result in death, personal
injury and/or property damage.
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
WARNING
!
FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury,
death or property damage.
Do not use this unit if any part has been underwater.
Immediately call a qualified service technician to inspect the
unit and to replace any part of the control system which has
been underwater.
!
WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
or death.
Before performing recommended maintenance, be sure the
main power switch to unit is turned off.
!
WARNING
OPERATING YOUR UNIT
The operation of your heat pump system is controlled by the Evolu-
tion
t
User Interface (UI). You may adjust the temperature manual-
ly through the UI or program the UI for automatic control. See UI
manual for detailed instructions.
To better protect your investment and to eliminate unnecessary ser-
vice calls, familiarize yourself with the following facts:
1. During heating, increasing the desired temperature setting
more than 2
°
F may cause the supplemental heaters to be
turned on for a short period of time to satisfy the demand.
Needless use of the supplementary heat reduces potential
energy savings.
2. Ice or frost tends to form on the coil during winter heating
operation. Your unit is designed to automatically melt the
ice.
When in this defrost cycle, it is normal for steam or
fog to rise from the outdoor unit, and for water to drain
from the outside of unit.
Do not be alarmed!
To start the unit:
1. Turn on the electrical power supply to unit.
2. Set MODE control to desired mode and the User Interface
for automatic control.
To shut off unit:
Note:
If the unit is being shut down because of a malfunction, call
your dealer as soon as possible.
1. Set system MODE control to OFF.
2. Turn off the electrical power supply to unit.
Cooling Mode
With the UI control set to COOL, your unit will run in cooling mode
until the indoor temperature is lowered to the level you have se-
lected. On extremely hot days, your unit will run for longer periods
at a time and have shorter “off” periods than on moderate days.
Heating Mode
With the UI control set to HEAT, your unit will run in heating mode
until the room temperature is raised to the level you have selected.
Of course, your unit will run for longer periods to maintain a com-
fortable environment on cooler days and nights than on moderate
ones.
Supplemental Heat
Your unit 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 automatically turn on the
supplemental heat, as needed, in order to maintain the level of com-
fort you have selected.
Defrost Mode
When your unit is providing heat to your home or office and the out-
door temperature drops below 45
°
F, moisture may begin to freeze
on the surface of the coil. If allowed to build up, this ice would im-
pede airflow across the coil and reduce the amount of heat absorbed
from the outside air. So, to maintain energy--efficient operation,
your unit has an automatic defrost mode.
The defrost mode starts at a preset time interval of 30 minutes, al-
though, it may be reset to 60, 90 or 120 minutes. Defrost will start
at the preset time only if the ice is sufficient to interfere with normal
heating operation.
After the ice is melted from the coil, or after a maximum of 10 min-
utes in defrost mode, the unit automatically switches back to normal
heating operation.
Do not be alarmed if steam or fog appears at the outdoor unit during
defrost 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 freezing
rain it is not uncommon for ice to build up on the unit grille. This is
