KLIMAIRE PTAC Terminal Heat Pump User Manual

: June 9, 2024
: KLiMAiRE

Table of Contents

Introduction
Troubleshooting
- Error Display
- Troubleshooting
Customer Support
Documents / Resources

KLIMAIRE PTAC Terminal Heat Pump

Introduction

IMPORTANT NOTE:
Read this manual carefully before installing or operating your new air conditioning unit. Make sure to save this manual for future reference.
For more information please visit www.klimaire.com

Troubleshooting

Error Display

Codes	Contents
AS	Open or short circuit of T1 temperature sensor
ES	Open or short circuit of T2 temperature sensor
CS	Open or short circuit of T3 temperature sensor
oS	Open or short circuit of T4 temperature sensor
HS	Open or short circuit of T5 or T6 temperature sensor
Lo	Temperature is lower than display range(0℃/32℉)
HI	Temperature is higher than display range(37℃/99℉)
E4	Communication malfunction between main control board and display board.
LE	Drive-by-wire control failure

Troubleshooting

Open circuit or short circuit of temperature sensor diagnosis and solution(AS/E5/CS/oS/HS)

Error Code	AS/E5/CS/oS/HS
Malfunction decision conditions	If the sampling voltage is lower than 0.06V

or higher than 4.94V, the LED will display the failure.
Supposed causes|

Wiring mistake
Faulty sensor
Faulty PCB

Troubleshooting:

Troubleshooting

Communication malfunction between main control board and display board. (E4)

Error Code	E4
Malfunction decision conditions	Main control board does not receive feedback

from display board during 120 seconds.
Supposed causes|

Wiring mistake
Faulty display board
Faulty main control board

Troubleshooting:

Troubleshooting

Drive-by-wire controller failure. (LE)

Error Code	LE
Malfunction decision conditions

Electric heating signal or compressor signal is on, but fan signal is of
Electric heating signal and compressor signal are on, but 4-way valve signal is off
Cooling only models have heating signal, or the 4-way valve signal and compressor signal are on at the same time.

Supposed causes|

Wiring mistake
Faulty wire controller
Wire controller doesn’t match

Troubleshooting:

Troubleshooting

DIP SWITCH TERMINAL

| DESIGNATION| 24V CONTROLLER
---|---|---

FC(L)

|

Front desk control terminal L

|
FC(N)| Front desk control terminal N|

LOW-FAN

| Low fan speed| GL
HI-FAN| High fan speed|

GH

4-WAY

| 4-way valve(for heat pump model)| B
HEAT2| Electrical heater 2|

W

HEAT1

| Electrical heater 1| (W)
COMP| Compressor|

Y

24V(N)

| 24VAC terminal N COM| C
24V(L)| 24VAC terminal L|

R

POSSIBLE CAUSES	SOLUTONS

UNIT DOES NOT START

Unit may have become unplugged Fuse may have blown
Circuit breaker may have been tripped Unit may be off
Unit may be in a protection mode.

| Check that plug is plugged securely in wall receptacle.
Note: Plug has a test/reset button on it. Make sure that the plug has not tripped.
Replace the fuse. See Note 1. Reset circuit breaker. See Note 1.
Turn unit on (bottom right button on keypad).
UNIT NOT COOLING/HEATING ROOM
Unit air discharge section is blocked Temperature setting is not high or low enough
Note: Setpoint limits may not allow the unit to heat or cool the room to the temperature desired. Check section on dipswitch settings.
Unit air filters are dirty.
Room is excessively hot or cold when unit is started.
Vent door left open.
Unit may be in a protection mode. Compressor is in time delay.| Make sure that curtains, blinds or furniture are not restricting or blocking unit airflow.
Reset to a lower or higher temperature setting. Remove and clean filters.
Allow sufficient amount of time for unit to heat or cool the room. Start heating or cooling early before outdoor temperature, cooking heat or gatherings of people make room uncomfortable.
Close vent door.
Check dipswitch settings for desired comfort.
Wait approximately 3 minutes for compressor to start.
DISPLAY HAS STRANGE NUMBERS/ CHARACTERS ON IT| The unit may be in a protection mode. The unit may be set for ℃(instead of ℉).
UNIT MAKING NOISES| Clicking, gurgling and whooshing noises are normal during operation of unit.
WATER DRIPPING OUTSIDE| If a drain kit has not been installed, condensation runoff during very hot and humid weather is normal. See Note 2.If a drain kit has been installed and is connected to a drain system, check gaskets and fittings around drain for leaks and plugs.
WATER DRIPPING INSIDE
Wall sleeve is not installed level| Wall sleeve must be installed level for proper drainage of condensation .Check that installation is level and make any necessary adjustments.
ICE OR FROST FORMS ON INDOOR COIL
Low outdoor temperature Dirty filters| When outdoor temperature is approximately 55℉ or below, frost may form on the indoor coil when unit is in Cooling mode. Switch unit to FAN operation until ice or frost melts.

Remove and clean filters.

COMPRESSOR PROTECTION
Power may have cycled, so compressor is in a restart protection.| Random Compressor restart- Whenever the unit is plugged in, or power has been restarted, a random compressor restart will occur. After a power outage, the compressor will restart after approximately 3 minutes.
Compressor Protection- To prevent short cycling of the compressor, there is a random startup delay of 3 minutes and a minimum compressor run time of 3 minutes.
ELECTRIC HEATING FAILURE| Clean the evaporator once every three months by professional people.

NOTES:

If circuit breaker is tripped or fuse is blown more than once, contact a qualified electrician.
If unit is installed where condensation drainage could drip in an undesirable location, an accessory drain kit should be installed and connected to drain system.

Temp. ℃ / ℉

Resistance KΩ

---|---|---|---|---|---

-10/14

| 62.2756| 17/62| 14.6181| 44/111| 4.3874
-9 /15.8| 58.7079| 18/64| 13.918| 45/113|

4.2126

-8 /17.6

| 56.3694| 19/66| 13.2631| 46/115| 4.0459
-7 /19.4| 52.2438| 20/68| 12.6431| 47/117|

3.8867

-6 /21.2

| 49.3161| 21/70| 12.0561| 48/118| 3.7348
-5 /23| 46.5725| 22/72| 11.5| 49/120|

3.5896

-4 /24.8

| 44| 23/73| 10.9731| 50/122| 3.451
-3 / 26.6| 41.5878| 24/75| 10.4736| 51/124|

3.3185

-2 / 28.4

| 39.8239| 25/77| 10| 52/126| 3.1918
-1 /30.2| 37.1988| 26/79| 9.5507| 53/127|

3.0707

0 /32

| 35.2024| 27/81| 9.1245| 54/129| 2.959
1 /33.8| 33.3269| 28/82| 8.7198| 55/131|

2.8442

2 /35.6

| 31.5635| 29/84| 8.3357| 56/133| 2.7382
3 /37.4| 29.9058| 30/86| 7.9708| 57/135|

2.6368

4 /39.2

| 28.3459| 31/88| 7.6241| 58/136| 2.5397
5 /41| 26.8778| 32/90| 7.2946| 59/138|

2.4468

6 /42.8

| 25.4954| 33/91| 6.9814| 60/140| 2.3577
7 /44.6| 24.1932| 34/93| **** 6.6835| 61/142|

2.2725

8 /46.4

| 22.5662| 35/95| 6.4002| 62/144| 2.1907
9 /48.2| 21.8094| 36/97| 6.1306| 63/145|

2.1124

10 /50

| 20.7184| 37/99| **** 5.8736| 64/147| 2.0373
11 /51.8| 19.6891| 38/100| 5.6296| 65/149|

1.9653

12 /53.6

| 18.7177| 39/102| 5.3969| 66/151| 1.8963
13 /55.4| 17.8005| 40/104| 5.1752| 67/153|

1.830

14 /57.2

| 16.9341| 41/106| 4.9639| 68/154| 1.7665
15 /59| 16.1156| 42/108| 4.7625| 69/156|

1.7055

16 /60.8

| 15.3418| 43/109| 4.5705| 70/158|

1.6469

Customer Support

The Klimaire logo is a registered Trademark of Klimaire Products inc.
Copyright 2020 Klimaire Products Inc.
2190 NW 89 Place, Doral, FL 33172 – USA
Tel: (305)594-4972
www.klimaire.com
Fax (305} 675-2212
sales@klimaire.com

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