Dettson COND-30 Assembly instructions

2019-12-04 X40229 Rev. J
INSTALLATION
INSTRUCTIONS AND
HOMEOWNER’S MANUAL
INSTALLER / SERVICE TECHNICIAN:
Use the information in this manual for the installation / servicing and keep the document near the furnace for future reference.
Communication wire connected between the indoor and outdoor units must be rated for at least 120VAC, they are protected by the
outdoor unit breaker and must be sized appropriately.
Do not install any metering device on the indoor coil. The expansion valve is located in the outdoor unit. If a metering device is
already installed in the indoor coil, it must be removed.
Both refrigerant lines must be separately insulated in order to avoid condensation and to ensure proper efficiency.
COND
-
30
COND
-
36
Liquid line dia (In)
1/4
1/4
Gas li
ne dia (In)
5/8
5/8
HOMEOWNER :
Please keep this manual near the furnace for future reference.
CAUTION
DO NOT TAMPER WITH THE UNIT OR ITS CONTROLS. CALL A QUALIFIED SERVICE TECHNICIAN.
THE WELDS MUST BE DONE BY USING NITROGEN PROTECTIVE GAS. NON-COMPLIANCE WILL MEAN THE IMMEDIATE
CANCELLATION OF THE WARRANTY.
Manufactured by :
Dettson Industries Inc.
Sherbrooke (Quebec) Canada
http://www.dettson.ca/
COND-30
COND-36
ALIZÉ MODELS

2
QUICK SETUP
Simple start-up using communicating thermostat with modulating furnace
1. Turn off the breaker of the outdoor unit and the furnace
2. Connect COND1 and COND2 on the interface card to N(1) and 2 at the outdoor unit (See Figure 9: 30/36K Electrical diagram)
3. Connect the RJ-11 wire between the interface and the furnace control board (See Figure 9: 30/36K Electrical diagram)
4. Position the temperature sensor (included) on the crossover of the indoor coil and connect it to the terminal T1 and Tc of the
interface (See section 6.8.1-)
5. Turn the outdoor unit “ON”
6. Turn the furnace “ON”
Make sure the unit is working properly
1. The Green LED on the interface card should be blinking once every two seconds
2. The Orange LED on the interface card should be blinking once every two seconds
3. The communicating thermostat will display “Heat Pump Found”
4. Set the thermostat to “COOL” mode and adjust the set point to a lower value than the actual room temperature
5. The furnace and the outdoor unit should start within 5 minutes
In this configuration, the interface card will gather information from both the outdoor unit and the furnace in order to adjust the fan speed to
the capacity of the outdoor unit
Legacy connection
1. Connect all the thermostat control wires to the interface card and the air handler control board (See Figure 20)
2. Make sure to connect the heat outputs W1 out and W2 out of the thermostat to the W1 and W2 inputs of the furnace – OR – W on
W2 on a single stage thermostat
3. Connect COND1 and COND2 on the interface card to N(1) and 2 at the outdoor unit (See Figure 20)
4. Set the dipswitches to the desired balance point (See Table 2)

3
TABLE OF CONTENTS
1- SAFETY PRECAUTIONS ............................................. 5
1.1- Warning ....................................................................... 5
1.2- Caution ........................................................................ 5
1.3- Specifications table...................................................... 6
1.4- Operation CharaCteristicS Curves .............................. 7
1.5- Capacity variation ratio according to temperature ....... 8
1.6- Noise criteria curve tables ........................................... 9
2- CONSTRUCTION VIEWS ........................................... 10
3- REFRIGERANT SYSTEM DIAGRAM......................... 10
4- SCHEMATIC DIAGRAMS ........................................... 11
4.1- Electrical diagram ...................................................... 11
4.2- Printed circuit board................................................... 12
5- FUNCTIONS AND CONTROL OUTDOOR UNIT ....... 13
5.1- Thermostat ................................................................ 13
5.1.1- Communicating thermostat (R02P032) ............. 13
5.1.2- Legacy thermostat............................................. 13
5.2- Function & control...................................................... 13
5.2.1- Temperature Parameters .................................. 13
5.2.2- Basic Functions................................................. 13
6- INSTALLATION MANUAL .......................................... 15
6.1- Notices for installation ............................................... 15
6.2- Installation site instructions........................................ 15
6.3- Installation site of the outdoor unit ............................. 15
6.4- Safety precautions for electric appliances ................. 15
6.5- Grounding.................................................................. 15
6.6- Installation drawing.................................................... 16
6.7- Installation of the indoor cooling coil.......................... 16
6.7.1- Multiposition coil................................................ 16
6.7.2- Multiposition (field conversion).......................... 18
6.7.3- Condensate drain.............................................. 18
6.8- Installation of interface card....................................... 19
6.8.1- Evaporator temperature sensor installation....... 19
6.9- Installation of connection pipe ................................... 20
6.10- installation of the outdoor unit.................................... 20
6.10.1- Electrical wiring ................................................. 20
6.10.2- Air purging and leakage test.............................. 20
6.10.3- Outdoor unit condensate drainage .................... 20
6.10.4- Check after installation and test operation ........ 21
6.10.5- Operation test.................................................... 21
7- TROUBLESHOOTING.................................................22
7.1- Precautions before performing inspection or repair ... 26
7.2- Verification................................................................. 26
7.3- Malfunction & status codes of the interface card
flashing leds......................................................................... 27
7.4- Malfunction & status codes of the outdoor unit flashing
leds 28
7.5- Analysis of some of the malfunction display: ............. 30
7.6- troubleshooting flow chart.......................................... 31
7.6.1- IPM protection desynchronizing malfunction;
compressor overcurrent ................................................ 32
7.6.2- Anti-high temperature, overload protection ....... 33
7.6.3- Failure start up malfunction ............................... 34
7.6.4- Out of step diagnosis for the compressor.......... 35
7.6.5- Overload and discharge malfunction ................. 36
7.6.6- PFC (correction for power factor) malfunction... 37
7.6.7- Communication malfunction .............................. 38
7.6.8- Flow chart outdoor communication circuit
detecting........................................................................ 39
7.6.9- High pressure protection ................................... 40
8- REMOVAL PROCEDURE OF OUTDOOR UNIT ........41
9- COMPONENTS AND REPLACEMENT PARTS.........48
9.1- Exploded vue 30/36K................................................. 48
9.2- Parts list 30/36K......................................................... 49
APPENDIX 1: RESISTANCE TABLE OF AMBIENT
TEMPERATURE SENSOR 15 K ......................................50
APPENDIX 2: RESISTANCE TABLE OF TUBE
TEMPERATURE SENSOR 20 K ......................................51
APPENDIX 3: RESISTANCE TABLE OF OUTDOOR
DISCHARGE TEMPERATURE SENSOR 50 K ............... 52
APPENDIX 4: WARRANTY POLICY ...........................53

4
LIST OF FIGURES
Figure 1: Operation characteristic curves 30K ............................. 7
Figure 2: Operation characteristic curves 36K ............................. 7
Figure 3: 30K Capacity ratio vs outdoor temperature ...................8
Figure 4: 36K Capacity ratio vs outdoor temperature ...................8
Figure 5: 30K Noise curve............................................................ 9
Figure 6: 36K noise curve ............................................................9
Figure 7: 30/36K dimensions...................................................... 10
Figure 8: refrigerant system diagram.......................................... 10
Figure 9: 30/36K Electrical diagram ........................................... 11
Figure 10: 30/36K Circuit board ................................................. 12
Figure 11: Installation schematic and clearances....................... 16
Figure 12: Multiposition configurations ....................................... 17
Figure 13: Splashguard without front slope ................................ 17
Figure 14: Splashguard with front slope..................................... 18
Figure 15: Multiposition field conversion .................................... 18
Figure 16: Condensate drain...................................................... 18
Figure 17: Chinook gas furnace ................................................. 19
Figure 18: Supreme electric furnace .......................................... 19
Figure 19: Evaporator Temperature Sensor– ............................. 19
Figure 20: Legacy furnace or air handler.................................... 20
Figure 21: Tubing tightening....................................................... 20
Figure 22: Interface card ............................................................ 27
LIST OF TABLES
Table 1: Outdoor unit specifications............................................. 6
Table 2: Dipswitch adjustment ................................................... 13
Table 3: Tubing torque tightening............................................... 20
Table 4: Malfunction and status display of interface card........... 27
Table 5: Malfunction and status display of outdoor unit 30/36K . 28

5
1-SAFETY PRECAUTIONS
Installing, starting up, and servicing air conditioner can be hazardous due
to system pressure, electrical components, and equipment location, etc.
Only trained, qualified installers and service personnel are allowed to
install, start-up, and service this equipment.
When handling the equipment, observe precautions in the manual and on
tags and stickers on the equipment. Follow all safety codes. Wear safety
glasses and work with gloves. Keep quenching cloth and fire extinguisher
nearby when brazing.
Read the instructions thoroughly and follow all warnings or cautions in
literature and attached to the unit. Always follow building codes and current
edition of national as well as local electrical codes.
Recognize the following safety information:
Warning: Incorrect handling could result in personal
injury or death
Caution: Incorrect handling may result in minor injury, or damage to
product or property
WARNING
1.1- WARNING
All electric work must be performed by a licensed technician according to
local regulations and the instructions given in this manual
Before installing, modifying, or servicing the system, the main
electrical disconnect switch must be in the OFF position. There
may be more than 1 disconnect switch. Lock out and tag switches
with a suitable warning label.
Never supply power to the unit unless all wiring and tubing are
completed, connected and checked.
This system contains dangerous electrical voltage. Incorrect
connection or inadequate grounding can cause personal injury or
death. Stick to the wiring diagram and all the instructions when
wiring.
Have the unit adequately grounded in accordance with the local
electric codes;
Have all wiring connected tightly. Loose connections may lead to
overheating and a possible fire hazard.
All installation or repair work shall be performed by your dealer or a
specialized subcontractor as there is the risk of fire, electric shock,
explosion or injury.
Make sure the outdoor unit is installed on a stable, level surface
with no accumulation of snow, leaves, or trash beside;
Avoid contact between refrigerant and fire as it generates
poisonous gas;
Apply specified refrigerant only. Never have it mixed with any other
refrigerant. Never have air remain in the refrigerant lines as it may
lead to rupture and other hazards;
Make sure no refrigerant gas is leaking out when installation is
completed;
Should there be refrigerant leakage, the density of refrigerant in the
air shall in no way exceed its limited value, or it may lead to
explosion;
Keep your fingers and clothing away from any moving parts;
Clear the site after installation. Make sure no foreign objects are
left in the unit;
Always ensure effective grounding of the unit.
CAUTION
1.2- CAUTION
Never install the unit in a place where a combustible gas might
leak, it may lead to fire or explosion;
Provide an electric leak breaker when it is installed in a wet
environment;
Never wash the unit with water
Handle unit transportation with care. The unit should not be carried
by only one person if it is more than 20 kg;
Never touch the heat exchanger fins with bare hands;
Never touch the compressor or refrigerant piping without wearing
gloves;
Make sure that the air handler filter is clean;
Should any emergency occur, stop the unit and disconnect the
power immediately;
Properly insulate ALL refrigerant tubing from outdoor units to the
interior cooling coil to prevent condensation.

6
1.3- SPECIFICATIONS TABLE
Table 1: Outdoor unit specifications
COND-30 COND-36
Rated voltage V~
Rated frequency Hz
Pha e
Btu/h 28000(9485~30026) 33600(7404~35997)
Btu/h 28400(9997~32994) 34600(14979~35997)
W2700(600~3900) 4100(450~4300)
W2800(650~4000) 3800(560~4300)
A11.5 17
A12 16.5
W4000 4300
A17 20
Pint/h 1.42 1.66
(Btu/h)/W 10.37 8.2
2.97 2.67
18 18
9 9
A40 67
A13.45 17.5
W2450 3010
Overload protector INT11L-6233 CS01F272H01
° F (°C) 0~115 (-18~45) 0~109 (-18~46)
° F (°C) -4~75 (-20~24) -4~75 (-20~24)
inch ɸ5/16 ɸ3/8
inch 2 1/18 2 1/18
inch 37.5X1.5x29.4 37x1,75x30
rpm 795 890
W90 170
A0.5 0.7
CFM 2354 2589
inch ɸ21.73 ɸ21.73
MPa 4.3 4.3
MPa 2.5 2.5
dB (A) 62 65
dB (A) 72 75
inch 38.6x31.1x16.8 38.6x31.1x16.8
inch 42.5x19.1x33.1 42.5x19.1x33.1
inch 42.6x19.2x33.7 42.6x19.2x33.7
lb 154.4 161
lb 165.4 172
oz 84.7 91.7
ft (m)
oz/ft.
inch
inch
ft (m)
ft (m)
24.6 (7.5)
0.5
ɸ1/4
ɸ5/8
32.8 (10)
98.4 (30)
Max di tance height
Max di tance length
Net weight
Gro weight
Refrigerant
Connection pipe ga additional charge
Refrigerant charge
Connection pipe length
El ctronic xpansion valv
Aluminum fins-copp r tub
Axial-flow
Automatic d frosting
R410A
Rotary
COP *
SEER *
1
Model
EER *
Dehumidifying volume
208/230
60
Conden er coil dimen ion (LXDXW)
Fan motor peed
Fan motor power output
Fan motor RLA
Compre or RLA
Outer diameter liquid pipe
Outer diameter ga pipe
Compre or power input
Throttling method
Dimen ion of package(LXWXH)
Cooling operation ambient temperature range
Heating operation ambient temperature range
Defro ting method
Climate type
I olation
Conden er pipe diameter
Permi ible exce ive operating
pre ure for the di charge ide
Permi ible exce ive operating
Pre ure for the uction ide
Sound pre ure level
Sound power level
Dimen ion (WXHXD)
Dimen ion of carton box(LXWXH)
Fan type
T1
I
Moi ture protection
Conden er form
Power upply
Cooling capacity (min~max)
Heating capacity (min~max)
Cooling power input (min~max)
Heating power input (min~max)
Cooling current input
Heating current input
Rated input
Rated current
Air flow volume
HSPF *
Compre or type
Compre or LRA
IPX4
Fan diameter
Conden er row -fin gap

7
1.4- OPERATION CHARACTERISTICS CURVES
Figure 1: Operation characteristic curves 30K
Figure 2: Operation characteristic curves 36K

8
1.5- CAPACITY VARIATION RATIO ACCORDING TO TEMPERATURE
Figure 3: 30K Capacity ratio vs outdoor temperature
Figure 4: 36K Capacity ratio vs outdoor temperature

9
1.6- NOISE CRITERIA CURVE TABLES
Figure 5: 30K Noise curve
Figure 6: 36K noise curve
Compressor frequency/Hz
Compressor frequency/Hz

10
2-CONSTRUCTION VIEWS
Figure 7: 30/36K dimensions
3-REFRIGERANT SYSTEM DIAGRAM
Figure 8: refrigerant system diagram
* Properly insulate ALL refrigerant tubing from outdoor units to the interior cooling coil to prevent water dripping.
427mm
16.8 inch