Heat Controller M series Installation and operating instructions

HEAT CONTROLLER, INC.

AC/Heat Pumps

EKTC/EKTH

HEAT CONTROLLER, INC.

1900 Wellworth Ave., Jackson, Michigan 49203 • Ph. 517-787-2100 • Fax 517-787-9341 • www.heatcontroller.com

THE QUALITY LEADER IN CONDITIONING AIR

Installation Operation

and Maintenance

Packaged Terminal

M Series

ATTENTION INSTALLING PERSONNEL

As a professional installer you have an obligation to know the product better

than the customer. This includes all safety precautions and related items.

Prior to actual installation, thoroughly familiarize yourself with this Instruction

Manual. Pay special attention to all safety warnings. Often during installation or

repair it is possible to place yourself in a position which is more hazardous than

when the unit is in operation.

Remember, it is your responsibility to install the product safely and to know it

well enough to be able to instruct a customer in its safe use.

Safety is a matter of common sense...a matter of thinking before acting. Most

dealers have a list of specific good safety practices...follow them.

The precautions listed in this Installation Manual are intended as supplemental

to existing practices. However, if there is a direct conflict between existing

practices and the content of this manual, the precautions listed here take

precedence.

Made in USA

PACKAGE TERMINAL

AIR CONDITIONER/HEAT PUMP

with Smart Control

IMPORTANT NOTE TO THE OWNER

This equipment is to be serviced by professionally trained personnel only. If this equipment is improperly installed, adjusted or altered

by an unqualified person, a safety hazard may result.

IMPORTANT NOTE TO THE SERVICER

Read this manual and familiarize yourself with the specific items which must be adhered to before attempting to service this unit. The

precautions listed in this Installation Manual are intended as supplemental to existing practices. However, if there is a direct conflict

between existing practices and the content of this manual, the precautions listed here take precedence.

Your warranty certificate is also supplied with the unit. Read the warranty carefully and note what is

covered. Keep the warranty certificate in a safe place, so you can find it, if necessary.

Before using this manual, check the serial plate for proper model identification.

THE INSTALLATION AND SERVICING OF THIS EQUIPMENT MUST BE PERFORMED BY QUALIFIED,

RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.

EXPERIENCED TECHNICIANS ONLY.

Due to policy of continual product improvement, the right is reserved to change

specifications and design without notice.

Contents

Unit Features ........................................................................................... 3

General Information ................................................................................ 5

Installation Instructions.......................................................................... 6

Wiring ....................................................................................................... 8

Operating Instructions............................................................................ 9

Obtaining Service.................................................................................. 16

Normal Operating Sounds and Conditions ........................................ 17

Configuration Settings ......................................................................... 17

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 properly service the unit.

•LCDI or AFCI Power Cords - Underwrites 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 compres-

sor cycles off, it will not restart for three minutes.

•Automatic 2nd stage electric heat - If the room temperature

falls to 4°F below the set point temperature, the reverse cycle

heat is shut off and the electric strip heat is turned on.

•Automatic freeze protection - Whenever power is supplied to

the unit and the master switch is in the ON position, automatic

freeze protection is active. If the unit senses temperature below

40°F, the fan motor and electric strip heat are turned on. Freeze

protection can be turned off, if required.

•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. A random restart

condition can be avoided by setting the mode switch in the fan

only or off position before applying power to the unit.

•Fuse holder - On all 265 volt units, fuse holders are factory in-

stalled. Check for blown fuse if unit does not operate. Fuse

holder is located behind the front. Replacement fuses may be

purchased from the Parts Department or contact your sales rep-

resentative for part numbers.

FUSE

HOLDERS

Control Panel

•Indication LEDs - The touch pad has LEDs that corre-

spond to fan operation and to indicate unit status. The

LEDs next to the selections OFF, COOL, and HEAT in-

dicate which operational mode is active. The LED lo-

cated in the lower left corner is a status LED. This LED

indicates the status of the unit. See Diagnostic Mainte-

nance & Status Report section for further details.

Status LED

Touch Pad

•Load shedding - An LS terminal has been added for

load shedding operations. If at any time a switch is

closed between the LS and IN terminals, the compres-

sor and electric heater will lockout until the switch is

opened.

•Transfer fan - Terminals TF(-) and TF(+) on the low

voltage terminal board allow for an external (transfer)

fan connection. A user-supplied relay is required and,

depending upon the type used, an approved external

transformer kit may be required for installation.

NOTE: The PTAC Wire Harness Kit (PWHK01C) is required

when using either the transfer fan or load shedding option.

•Front mounting hole - A mounting hole is provided to

give the owner the option of securing the front to the

chassis. The mounting hole is located behind the air

intake grille. The owner must supply one 1/2 inch long

#8 sheet metal screw per unit. The screw must be re-

moved before the front can be removed.

Front Mounting

Hole

Chassis Front

•Energy Management System Features

Temperature Setback - This option can save energy dollars

for unrented or unoccupied rooms by automatically setting

back the operational temperatures. This mode of operation

is selected through the configuration routine (see Configu-

ration Settings section). If none of the keys on the control

pad have been pressed for an 18-hour period. The unit will

automatically go into a 3-stage setback routine; after 30

minutes, a 1 degrees setback; after 3 hours, 3 degrees, and

at 8 hours, a 7-degree setback. NOTE: Temperature set-

back does not work with a wired remote thermostat .

Door Switch and Motion Sensor Low Voltage Terminals

(DS1, DS2, MS1, MS2) - The door switch and motion sen-

sor operate as a unit, the door switch terminals allows for

wired connection of a door sensor to the control board. The

motion sensor interprets any door movement as a signal of

occupancy. If the switch between DS1 and DS2 is closed,

the door control will interpret the room door as closed. If

the switch between MS1 and MS2 terminals is opened (or

closed if unit is configured for normally open) the control will

interpret the action as a signal of occupancy. If thirty min-

utes pass without any door activity, Energy Management

Temperature setback activates.

Serial Port Interfaces - Two serial ports located on the con-

trol board provide easy access for two-way communications

to the control board from handheld PDA devices. An op-

tional RF antennae can be attached for wireless communi-

cations.

Unit Features

TRANSPORTATION DAMAGE

All units are securely packed in shipping containers tested according to International Safe Transit Association specifications. The

carton must be checked upon arrival for external damage. If damage is found, a written request for inspection by the carrier’s agent

must be made immediately.

In the event of damage, the consignee must:

1. Make notation on delivery receipt of any visible damage to shipment or container.

2. Notify carrier promptly and request an inspection.

3. In case of concealed damage, carrier should be notified as soon as possible—preferably within 5 days.

4. File the claim with the following supporting documents within the 6 month statute of limitations.

a. Original Bill of Lading, certified copy, or indemnity bond.

b. Original paid freight bill or indemnity in lieu thereof.

c. Original invoice or certified copy thereof, showing trade and other discounts or reductions.

d. Copy of the inspection report issued by carrier’s representative at the time damage is reported to the carrier.

The carrier is responsible for making prompt inspection of damage and for a thorough investigation of each claim. The distributor or

manufacturer will not accept claims from dealers for transportation damage.

UNIT ACCESSORIES

This unit is designed for through-the-wall installation in new or existing buildings. To complete the installation of this PTAC, an

insulated wall sleeve and an outdoor grille (either the stamped aluminum grille or the architectural grille) are required.

The chassis and the cabinet front are shipped in one carton.

General Information

Installation Instructions

To ensure that the unit operates safely and efficiently, it must be installed, operated and maintained according to these installation

and operating instructions and all local codes and ordinances or, in their absence, with the latest edition of the National Electric

Code. The proper installation of this unit is described in the following sections. Following the steps in the order presented should

ensure proper installation.

WARNING

TO PREVENT PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO

ELECTRICAL SHOCK, YOU MUST:

• MAKE SURE THE ELECTRICAL ACCESSORIES ARE INSTALLED ONLY IN THE

PRE-DRILLED MOUNTING HOLES.

• MAKE SURE THE ELECTRICAL WIRING IS NOT INSTALLED AND DOES NOT

HANG BELOW THE PRE-DRILLED MOUNTING HOLES OR LIE IN THE UNIT

BASE PAN.

SLEEVE STIFFENER AND REAR CLOSURE PANEL

REMOVAL

Before the chassis can be installed in the wall sleeve, the sleeve

stiffener and the rear closure panel must be removed.

1. Remove the zigzag folded cardboard sleeve stiffener.

2. Remove the rear closure panel by folding the four flaps.

3. Grasping the top and bottom flanges of the rear closure panel

pull the entire panel out diagonally from one side.

DRAIN KIT INSTALLATION (Optional Accessory)

During normal reverse cycle heating operation, condensate water

will drain out of the rear of the wall sleeve. If this water is

objectionable, a drain kit should be installed. The drain kit has

provisions for draining the water from either the right or left side

of the sleeve externally or from the bottom of the sleeve inter-

nally. The drain kit must be installed before the outdoor grille is

installed. Refer to the Installation Instructions supplied with the

drain kit for a complete description of the installation procedure.

Sleeve

Stiffene

Wall Sleeve with Stiffener

Rear Closure

Panel

Flaps

Stiffener Removal

Rear Enclosure Panel Removal

Installation Instructions

SLEEVE INSTALLATION

In order for condensate water to drain properly inside the unit, the

sleeve must be installed properly:

• Level from right to left.

• A slight downward pitch from the indoor side to the outdoor

side as shown below.

Refer to the Installation Instructions supplied with the PTAC wall

sleeve for a complete description of the installation procedure.

Wall

Sleeve

Outside

Wall

OutsideInside Level

1/4 Bubble

Tilt To

Outside

Proper Sleeve Tilt

OUTDOOR GRILLE

An outside grille must be installed to direct air flow for proper unit

operation and also protect the outdoor coil. The grille must be

installed before installing the chassis. Refer to the Installation

Instructions supplied with the outdoor grille kit for a complete

description of the installation procedure.

This model requires either a Stamped Grille Kit (Model SGK--B),

a Polymer Grille Kit (Model PGK) or an Architectural Grille Kit

(Model AGK--B). When replacing an old chassis with an existing

grille or using a specialized grille in a new installation, please

check with your sales representative to determine if the new

chassis should be used with the non-standard specialized grille.

An improper outdoor grille can decrease cooling or heating

capacity, increase energy usage and shorten compressor life and

possibly void the warranty.

FRONT REMOVAL

1. Grasp the cabinet front.

Cabinet Front Removal View 1

2. Pull the bottom of the cabinet front away from the chassis until

the retaining clips disengage. NOTE: If front is secured with

screws, remove front mounting screw, then follow front re-

moval procedure.

Cabinet Front Removal View 2

Front Mounting

Hole

Front Mounting Screw

3. Lift the cabinet front off the chassis. Reverse this procedure to

reinstall the cabinet front.

CHASSIS INSTALLATION

1. Remove the cabinet front from the chassis as described in

Front Removal.

2. Insert the chassis into the wall sleeve.

Chassis

Wall Sleeve

Outside

Wall

Slide Chassis In

Chassis Installation View 1

3. Slide the chassis into the wall sleeve until the chassis flanges

contact the front edge of the wall sleeve.

Chassis

Wall Sleeve

Outside

Wall

Screws

(3 on each

side of unit)

Chassis Installation View 2

Installation Instructions

Wiring

WARNING

TO AVOID PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO

ELECTRICAL SHOCK, DO NOT SERVICE THIS UNIT WITHOUT FIRST SHUTTING OFF

POWER TO THE UNIT FROM THE CIRCUIT BREAKER AND/OR REMOVING

THE UNIT CORD SET PLUG FROM THE WALL OUTLET.

CAUTION

TO AVOID PROPERTY DAMAGE, PERSONAL INURY OR DEATH DUE TO

ELECTRICAL SHOCK, DO NOT USE AN EXTENSION CORD WITH THIS UNIT.

CAUTION

TO AVOID THE RISK OF PROPERTY DAMAGE, PERSONAL INURY OR FIRE,

USE ONLY COPPER CONDUCTORS.

CAUTION

TO AVOID THE RISK OF PERSONAL INURY, WIRING TO THE UNIT MUST BE

PROPERLY POLARIZED AND GROUNDED.

Cord connection to a wall socket is not permitted for 265-volt

units. All 265-volt units must be hard wired using the hard wire

kit or make use of the plug-in receptacle in the standard subbase.

230/208V and 115V units are equipped with LCDI or AFCI power

cords and can open the electrical circuit to the unit. In the event

the unit does not operate, check the reset button located on or

near the head of the power cord as part of the normal trouble-

shooting procedure.

WARNING

THIS AIR CONDITIONER IS NOT MEANT TO PROVIDE UNATTENDED COOLING OR

LIFE SUPPORT FOR PERSONS OR ANIMALS WHO ARE UNABLE TO REACT TO

THE FAILURE OF THIS PRODUCT.

THE FAILURE OF AN UNATTENDED AIR CONDITIONER MAY RESULT IN EXTREME

HEAT IN THE CONDITIONED SPACE CAUSING OVERHEATING OR DEATH OF

PERSONS OR ANIMALS.

PRECAUTIONS MUST BE TAKEN TO WARN OFF OR GUARD AGAINST SUCH AN

OCCURRENCE.

PTAC WIRE HARNESS KIT (PWHK01C)

See PTAC Wire Harness Kit Installation Instructions for

proper wire orientation and location for low voltage wiring.

HEATERLESS UNITS

If a heaterless unit is ordered, field provisions must be made for

adding supplemental heat. Refer to the Installation Instructions

supplied with the heater kit for a complete description of the

installation procedures. All 208/230 volt heaterless units are

shipped with a 15 Amp power cord and all heaterless 265 volt

units are shipped with a 20 Amp power cord.

When adding a heater kit to a heatless unit, the power cord

supplied with the heater kit must be used in place of the power

cord supplied with the unit. Table 1 specifies power cord rating

requirements for the various heater kits.

4. Secure the chassis to the wall sleeve using three screws on

each side of the chassis to ensure a proper seal between the

chassis and the wall sleeve. The screws are supplied in a

plastic bag attached to the power cord.

IMPORTANT NOTES:

1. The unit is equipped with a rubber grommet mounted com-

pressor. These grommets are factory set and require no ad-

justment.

2. If a standard subbase is used, be sure the right hand subbase

cover is removed before the chassis is installed in the sleeve.

3. On 230V,30A units installed with an existing subbase, use the

subbase cover extension kit.

4. Check the indoor and outdoor grilles for obstructions to air

flow. The unit must be located where curtains, furniture, trees,

or other objects do not block the air flow to and from the unit.

If air is obstructed and/or deflected back into the unit, the air

conditioner compressor may cycle on and off rapidly. This

could damage the compressor or possibly void the warranty.

Operating Instructions

230/208 Volt Units 265 Volt Units

Heater Size

(kW) Power Cord

Rating (amp) Power Cord

Rating (amp)

1.5 15 20

2.5 15 20

3.5 20 Not Applicable

3.7 Not Applicable 20

5.0 30 30

Power Cord Requirements

Table 1 - Power Cord Requirements

NOTE: Heaterless units are shipped with an auxiliary data label

on the front side of the mid-partition panel. If an electric heater

kit is field installed, the installer must mark the appropriate box on

the label to indicate the electric heater capacity. If no heater is

installed, the box labeled “None” must be marked. Refer to the

unit nameplate for over current protection data.

Wiring

VOLTAGE MEASUREMENTS

Once the unit is properly wired, measure the unit supply voltage.

Voltage must fall within the voltage utilization range given in

Table 2.

Unit Voltage

Rating Minimum Maximum

230/208 197 253

265 238 292

115 103.5 126.5

Operating Voltage

Voltage Utilization Range

Table 2 - Operating Voltage

USERS CONTROLS

A six button touch key pad located behind the control door

controls both temperature and operation mode. The key pads can

be used alone or in combination.

THERMOSTAT SETTING

Pressing the COOL thermostat control and the up or down arrows

will provide a cooler room temperature, respectively. Pressing

the HEAT thermostat control and the up or down arrow keys will

provide a warmer room temperature.

LCDI OR AFCI POWER CORD

230/208V and 115V units are equipped with LCDI or AFCI power

cords and can open the electrical circuit to the unit. In the event

the unit does not operate, check the reset button located on or

near the head of the power cord as part of the normal trouble-

shooting procedure.

FAN SPEED

The fan speed touch key will deliver high, low or auto fan speed

to circulate room air. NOTE: The AUTO selection will not be

available if a fan speed is selected without COOL or Heat

selection.

Fan Operation HIGH or LOW with HEAT or COOL mode selected

- The selected fan speed shall run in the selected speed.

Fan Operation AUTO with HEAT or COOL mode selected - The

fan will run in low and high speed. The changes in fan speed are

automatic.

DIAGNOSTIC LIGHT

The green diagnostic light located in the lower left hand corner of

the touchpad and indicates operation warnings. This light usually

indicates that either the filter or coils need cleaning. Please refer

to the Maintenance and Cleaning section for the proper cleaning

procedure. If this light is still on after cleaning, please refer to the

Diagnostic & Status Report section for assistance.

Status LED

User Controls

Table of contents

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