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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 manual should be left with the equipment user.

Operating Your Unit

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  of  heat  pump

systems have 3 controls: a temperature control selector, a FAN control,

and  a  SYSTEM  or  MODE  control.  Refer  to  your  thermostat  owner’s

manual for more information.
To better protect your investment and 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 raised to 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  days  and  nights,  your  system  will  automatically  turn  on  the

supplemental heat, as needed, in order to maintain the level of 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 home or office and 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 absorbed from the

WARNING

!

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.

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 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.

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 and a lock-out tag is installed. There may be

more than one disconnect switch.

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.

Summary of Contents for PHD4

Page 1: ...s 24 60 Single Packaged Heat Pump System with R 410A Refrigerant Technician Name Phone Number Address Company Name Date Installed NOTE TO EQUIPMENT OWNER For your convience 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 ...

Page 2: ...or 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 M...

Page 3: ... an air filter in place before it can be operated These filters should be located in at least one of two places In many applications the installer will provide return air filter grilles mounted on the wall or ceiling of the conditioned structure In the instance of filter grilles the filters can simply be removed from the grille and replaced The other typical application is an accessory filter rack...

Page 4: ...heck without proper instrumentation If there are any discrepancies in the operating cycle contact your local dealer and request service Refrigerant Circuit The refrigerant circuit is difficult to check for leaks without the proper equipment If inadequate cooling is suspected contact your local dealer for service Unit Panels After performing any maintenance or service on the unit be sure all panels...

Page 5: ... sure they are open and unobstructed If these checks do not reveal the cause call your servicing dealer If your unit is not operating at all check the following list for easy solutions Check to be sure that your thermostat temperature selector is set below the indoor temperature during the cooling season or above the indoor temperature during heating season Be sure the SYSTEM switch or MODE contro...

Page 6: ...ctions Inspect and perform functional test of equipment as needed to ensure proper function Repair or replace damaged or overheated components and wiring X Inspect electric heater if installed Check for signs of overheating of elements controls and wiring Make sure heater elements are not broken or electically shorted X Check refrigerant system subcooling and or superheat system dependent X Inspec...

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