UNIT OPERA
TION
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CARE AND CLEANING
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage or improper operation.
Do not operate unit without filters in place. If a filter becomes torn or damaged, it should be replaced immediately.
Operating without filters in place or with damaged filters will allow dirt and dust to reach indoor coil and reduce
cooling, heating, airflow and efficiency of unit. Airflow restriction may cause damage to unit.
The most important thing you can do to maintain unit efficiency is to clean the filters at least every 30 days (or
sooner depending on application). Clogged filters reduce cooling, heating and airflow.
Keeping filters clean will:
* Decrease cost of operation.
* Save energy.
* Prevent clogged indoor coil.
* Reduce risk of premature component failure.
To Clean Air Filters:
* Vacuum off heavy soil.
* Run water through filters.
* Dry thoroughly before replacing.
Dirty filter-
Needs cleaning
Clogged filter -
Greatly reduces cooling,
heating and airflow.
Identifying Clogged Filter
2 Air filters
Pull up
Push down
Removing Air Filter
Removing and
Replacing Air Filter
Replacing Air Filter
*
Clean both sides of outdoor coil. (Never use high pressure spray on coils.)
* Clean baseman and outdoor vent filter.
* Clean outdoor orifice and fan.
* Clean indoor coil. (Never use high pressure spray on coils.)
* Clean indoor fan, wire screen and front panel.
* Clean or install new indoor-air inlet filter(s).
* Clean wall sleeve and outdoor grille.
* Inspect cord and receptacle.
* Secure electrical connections.
* Ensure front panel is properly mounted and not damaged.
* Ensure wall sleeve is installed properly.
* Ensure heat and cool cycles operate properly.
PREVENTATIVE MAINTENANCE
Preventative maintenance is essential to proper unit operation, efficiency and longevity.
To ensure equipment operates properly, it must be properly maintained. Equipment operation should be checked
and verified several times during each year. During regular unit inspection and maintenance, follow the
guidelines below:
OPERATION
IMPORTANT:
When unit is first started, high humidity conditions can cause condensation to form on discharge
grille. Keep doors and windows closed. Room humidity will decrease and moisture will evaporate.
NOTE:
In case of a power failure, the unit will remember the last programmed settings and will restart to those
settings.
1) TEMP CONTROL
Temp Control is used to maintain room temperature. Compressor will cycle on and off to keep room at the
requested level of comfort.
O
COOLER
- Lowers temperature. (Minimum temperature setting is 61 F)
O
WARMER
- Raises temperature. (Maximum temperature setting is 86 F)
2) FAN SPEED, MODE & ON/OFF
FAN SPEED
- Set fan operation for HI, MED, or LO speed.
MODE- COOL
- For cooling
MODE- HEAT
- For heating
NOTE: If unit is a heat pump, raising the heat
setting 5_F will cause unit to use its electric
heating
elements for one cycle in order to reach the
new requested temperature quickly.
MODE - FAN
- For fan--only operation
ON/OFF
- Turns the unit on or off.
NOTE: The LED above the ON/OFF button will
be green when unit is ON and red when the
unit is OFF.
All other LEDs will be off when unit is set to OFF mode.
NOTE: Power remains connected to unit.
ABOUT THE CONTROLS ON YOUR UNIT
PTAC CONTROLS
1
FRONT PANEL AND CASE
Turn unit off and disconnect power supply.
To clean, use water and a mild detergent. DO NOT use bleach or abrasives. Some commercial cleaners may
damage the plastic parts.
OUTDOOR COIL
Coil on outdoor side of unit should be checked regularly. Unit will need to be removed to inspect dirt build-up that
will occur on the inside of the coil. If clogged with dirt or soot, coil should be professionally cleaned.
NOTE:
Never use a high-pressure spray on coil.
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Airflow restriction may cause damage to the unit.
Coils
Grille
Clean inside and outside of outdoor coils regularly.
Outdoor Coil
BASE PAN
In some installations, dirt or other debris may be
blown into unit from outside and settle in base pan
(bottom of unit).
In some areas of the United States, a "jell-like"
substance may be seen in the base pan. Check base
pan periodically and clean, if necessary.
AIR FILTERS
IMPORTANT: TURN UNIT OFF BEFORE CLEANING
CARE AND CLEANING
HIGH
MED
LOW
AUTO
WARMER
COOLER
INDOOR
SETPOINT
SET TEMP.
COOL
FAN
HEAT
TIMER
ON/OFF
MODE
FAN
SPEED
MAINTENANCE &
SER
VICE
YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World !
YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World !
