Heat Controller EKTH, EKTC User Manual
HEAT CONTROLLER, INC.
Installation Operation
and Maintenance
Packaged Terminal
AC/Heat Pumps
M Series
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
PACKAGE TERMINAL
AIR CONDITIONER/HEAT PUMP
Made in USA
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.
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
RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.
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,
EXPERIENCED TECHNICIANS ONLY.
Due to policy of continual product improvement, the right is reserved to change
specifications and design without notice.
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 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 - Af ter the compressor cycles off, it will not restart for three minutes.
• Automatic 2
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 installed. 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 representative for part numbers.
nd
stage electric heat - If the room temperature
• Indication LEDs - The touch pad has LEDs that correspond to fan operation and to indicate unit status. The
LEDs next to the selections OFF, COOL, and HEAT indicate which operational mode is active. The LED located 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 compressor 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 removed before the front can be removed.
FUSE
HOLDERS
Front Mounting
Hole
Control Panel
Chassis Front
3
Unit Features
• 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 setback 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 sensor 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 minutes pass without any door activity, Energy Management
Temperature setback activates.
Serial Port Interfaces - Two serial ports located on the control board provide easy access for two-way communications
to the control board from handheld PDA devices. An optional RF antennae can be attached for wireless communications.
4
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.
5
Installation Instructions
r
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
T
O PREVENT PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO
ELECTRICAL SHOCK, YOU MUST:
•
AKE SURE THE ELECTRICAL ACCESSORIES ARE INSTALLED
M
PRE-DRIL LED MOUNTING HOLES.
•
AKE SURE THE ELECTRICAL WIRING IS NOT INSTALLED AND DOES NOT
M
BELOW
HANG
BASE PAN.
THE PRE-DRILLED MOUNTING HOLES OR LIE IN THE UNIT
ONLY
IN THE
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 internally. 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.
Rear Closure
Panel
Flaps
Stiffener Removal
Rear Enclosure Panel Removal
Sleeve
Stiffene
Wall Sleeve with Stiffener
6
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