beautypg.com

Comfort-Aire PTHP15A130A User Manual

Page 3

background image

Heat Controller

OWNER’S MaNual

Packaged Terminal A/C

2

UNIT FEATURES

This unit has many features which are different than

those found on conventional PTAC units. The servicer

must be familiar with these features in order to

property handle the unit.

LCDI Cords - Underwriters Laboratories and the

National Electric Code (NEC) now require power

cords that sense current leakage and can open

the electrical circuit to the unit on units rated at

250 volts or less. In the event that unit does not

operate,check the reset button located on or near

the head of the power cord as part of the normal

troubleshooting procedure.

LCDI power Cord

Automatic 3-minute compressor lockout - After

the compressor cycles off, it will not restart for three

minutes.

Random restart delay - To help eliminate power

surges after a power outage, the unit Is equipped

with a two to four minute random restart delay

feature. Whenever the unit is plugged In with the

master switch turned on and the mode switch set in

the cool or heat mode, a random restart will occur.

Indication LEDs - The control panel has LEDs that

correspond to fan operation and to Indicate unit

status. The LEDs next to the selections ON/OFF,

FAN, COOL, and HEAT indicate which operational

mode Is active.

High Pressure Protection - The unit will shut off

automatically when the pressure in the system

is over 638 psi and within 10 minutes, after the

compressor turns off, the unit will restart when the

pressure turns back below 551 psi. This protection

can effectively avoid the burst and leakage of

pipes, lessen the system failures and prolong the

service life.

Failure Tolerance - If the unit is in protection mode

less than 4 times in one hour, the accumulation

times will reset to avoid system failure. Only when

the unit enters protection mode more than 4 times in

one hour will, the system fail to restart automatically

and need manual restart.

Standard Physical Dimensions - The series PTAC

uses standard dimensions, 42” wide x 16” high x

13-3/4” deep.

Replacement of older units is made easy.

Weather - Protected Electrical Components

-Vital electrical components are protected from the

weather by locating them on the indoor side of the

weather barrier.

Highly Featured Microprocessor Controls

- Microprocessor controls are programmed to

interface with the temperature sensors to maximize

comfort conditions for the room occupant.

Thermistors are used to sense small changes in

temperature to give excellent room control and

allow the microprocessor to monitor and react to

changing conditions.

Automatic Emergency Heat on Heat Pump

Units-Automatically uses electric resistance heat if

the heat pump falls.

High-Temperature Heat Pump Operation

Protection

-Automatically protects the compressor if heat pump

is operated with high indoor coil temperatures.

Power to the outdoor fan and the compressor

are turned off if the indoor coil gets too hot during

heat pump operation to prevent damage to the

compressor.