50JZ-A
50JZ ---A
Single Packaged Heat Pump System
With Puron (R ---410A) Refrigerant
50Hz, CE
7 --- 1 4 k W ( S i z e s 2 4 --- 4 8 )
Owner’s Information Manual
A09042
Fig. 1 -- Unit 50JZ--A
NOTE TO EQUIPMENT OWNER:
For your convenience, please record the model and serial numbers of your new equipment in the spaces
provided. This information, along with the installation data and dealer contact information, will be helpful
should your system require maintenance or service.
UNIT INFORMATION
Model # _____________________________________
Serial # ______________________________________
ACCESSORIES (List type and model #)
_____________________________________________
_____________________________________________
_____________________________________________
NOTE TO INSTALLER:
This manual must be left with the equipment owner.
INSTALLATION INFORMATION
Date Installed ________________________________
DEALERSHIP CONTACT INFORMATION
Company Name_______________________________
Address______________________________________
_____________________________________________
Phone Number _______________________________
Technician Name _____________________________
_____________________________________________
1
SAFETY CONSIDERATIONS
Improper installation adjustment, alteration, service, maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause death, personal injury, or property
damage. Consult a qualified installer, service agency, or your
distributor or branch for information or assistance. The qualified
installer or agency must use factory--authorized kits or accessories
when modifying this product Refer to the individual instructions
packaged with the kits or accessories when installing.
Follow all safety codes. Wear safety glasses, protective clothing,
and work gloves. Use quenching cloth for brazing operations.
Have a fire extinguisher available. Read these instructions
thoroughly and follow all warnings or cautions included in
literature and attached to the unit. Consult local building codes,
the current editions of the National Electrical Code (NEC) NFPA
70.
In Canada refer to the current editions of the Canadian electrical
Code CSA C22.1.
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 CAUTION.
These words are used with the safety--alert symbol. DANGER
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 unsafe 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 manualshould be left with the equipmentuser.
!
FIRE, EXPLOSION, ELECTRICAL SHOCK
HAZARD
Failure to follow this warning could result in personal
injury, death, and/or property damage.
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.
!
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 under water.
Immediately call a qualified service technician to inspect the
unit and to replace any part of the control system which has
been under water.
!
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 and a lock--out tag is
installed.
WARNING
WARNING
WARNING
!
CAUTION
CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use care and
wear appropriate protective clothing, safety glasses and
gloves when handling parts and servicing furnaces.
OPERATING YOUR UNIT
The operation of yourheat pump systemis controlledby the indoor
thermostat. You simply adjust the thermostat and it maintains the indoor temperature at the level you select. Most thermostats of heat
pump systems have 3 controls: a temperature control selector, a
FAN control, and a SYSTEM or MODE control.Refer to yourthermostat owner’s manual for more information.
To better protectyour investmentand to eliminate unnecessary service calls, familiarize yourself with the following facts:
.
1. During heating, increasing the desired temperature setting
more than 2°F(1.1°C) 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 select temperature.
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 SYSTEM or MODE control set to COOL, your unit will
run in cooling mode until the indoor temperature is lowered to the
level you have selected. 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 SYSTEM or MODE control set to HEAT, your unit will
run in heating mode until the room temperature is raisedto the level
you have selected. Of course, your unit will run for longer periods
to maintain a comfortable 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 daysand nights,your system will automatically turn on the
supplementalheat,as needed,in order to maintain the levelof comfort you have selected.
When your heat pump needs additional heat to keep you comfortable your thermostat will turn on the supplemental heat (if
equipped).
Defrost Mode
When your unit is providing heat to your homeor officeand the outdoor temperature drops below 45°F(7.2°C), moisture may begin to
freeze on the surface of the coil. If allowed to build up, this ice would
impede airflow across the coil and reduce the amount of heat ab-
2
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