Electrical Installation
Electrical Installation
All wiring and grounding must comply with local electrical codes.
Wiring Important Safeguards:
- Check the unit nameplate for electrical rating. Be sure wiring is done according to local codes and wiring diagram.
- Use a separate power line with circuit breaker for each air conditioning unit.
- Connect electrical ground to all units.
- Wiring should not touch refrigerant tubing, compressor, motors or moving parts.
- The manufacturer will accept no responsibility for problems caused by unauthorized changes in the internal wiring.
- Connect the wiring firmly.
Indoor Unit
Remove the right side junction box (see previous instructions) to access the terminal base.
System Wiring Routing
- Pass the system wiring through the PVC pipe, referred to in the Section of Installation Method
(both power and control lines) to interconnect indoor and outdoor units.
- Connect the wire terminals to the terminal base. See connection indication on system wiring diagram.
- Make sure all connections are tight.
Outdoor Unit
See the electrical installation instructions in the Installation Manual for the Outdoor Unit.
Caution
In order to avoid a hazard due to inadvertent resetting of the thermal cut-out, this appliance must not be supplied through
an external switching device, such as a timer, or connected to a circuit that is regularly switched on and off by the utility.
Dimensional Data
Dimensional Data
Figure 13
Figure 14
Figure 15
Condensate Drain Piping
1. The drain hose should run straight down the wall to a level where the run
off will not stain the wall.
2. These should be no water traps. Avoid putting the end of the hose in
water.
3. To conveniently drain the system, the drain piping must slant downward,
with a slope of at least 1:50 to prevent leakage.
4. When the drain hose is placed in the room, insulate the hose with foam
polyethylene to avoid damage to the ceiling or furniture.
5. After completing installation of refrigerant lines, wiring and drain
connections, bind the tubing, wiring and drain piping (check if local codes
permit binding) into a bundle by using tape at 100 or 200 mm (4" to 8")
intervals. Make sure the drain tube is at the bottom of the bundle
(Figure 16).
Figure 16
Wiring Diagram
REMOVE HI-BR WIRE FROM TB-1 AND REPLACE
WITH EXTRA HI-BLK WIRE WHEN HI SPEED/CFM
6
5
1
0
6
4
WHT
COM
WHT
WHT
RED
EXTRA-HI
BLOWER
MOTOR
BLK
For 4 speeds only
BLU
BRW
MED
HI
RED
LOW
IS REQUIRED IN THE FIELD.
FACTORY WIRING
FIELD WIRING
220-240V/1PH/60Hz
POWER SUPPLY
220-240V/1PH/50Hz
L
220-240 VAC
CONTROL WIRING
TO CONDENSING UNIT.
LEGEND :
LEGEND :
C1
N
C2
2. ENSURE THAT POWER SUPPLY AGREES WITH
3. USE ONLY COPPER CONDUCTORS.
MUST COMPLY WITH LOCAL CODES.
EQUIPMENT NAME PLATE.
1. POWER WIRING AND GROUDING OF EQUIPMENT
NOTES :
TO HEATING
TO COOLING
WHT
WHT
A
B
COOL
SWITCH
COOLING - HEATING
HEAT
h
THERMOSTAT
OFF
LOW
3 SPEED
SWITCH
HI
MED
HEATER
MANUAL RESET
AUTO RESET
4
3
2
1
Maintenance
Regular Maintenance
Be sure to disconnect the power before inspection or maintenance air conditioner.
1. Cleaning the air filter
Air flow is reduced and cooling efficiency impaired if the filter is clogged. Be sure to clean the filter every two weeks
during the cooling season.
1.1 Remove air filters to side
- Slide air filter to left or right side.
1.2 Remove air filters to bottom
- Loose screws located under the filters at return air plenum set.
- Remove air filter frame and pull air filter down.
How to clean the air filter
- Wash away dust from the air filters with clean water or vacuum it
with an electric vacuum cleaner
Note:
Once the air filter is washed, dry it completely before returning it
to its original position.
After cleaning be sure to return it to its original position.
Cautions
- Do not wash the air filter in water that is over 40
ํ
C or it may shrink.
- Do not expose the air filter to fire.
- Do not expose the air filter to direct sunlight for a long time when the
air is very dirty.
- Clean the air filter more frequently.
- Do not inject water into motor
บริษัท
แอมแอร
จำกัด
999/1
หมูที่
9
ถนนบางนา
-
ตราด
กม
.19
ตำบลบางโฉลง
อำเภอบางพลี
จังหวัดสมุทรปราการ
10540
Trane
www.trane.com
For more information, contact your locat district office
Literature Order Number: MS-SVN004-EN
Date: February
2011
Supersedes November
2014
Stocking Location:
Bangkok, Thailand
Trane has a policy of continuous product and product data improvement and reserves the right
to change design and specifications without notice.
CONCEALED DX AIR HANDLER
COOLING-HEATING
MCD 512-524 DB/D1
MCDA 18-A24 DB/D1
Wiring Diagram
Wiring Diagram
THERMOSTAT
EQUIPMENT NAME PLATE.
3. USE ONLY COPPER CONDUCTORS.
MUST COMPLY WITH LOCAL CODES.
2. ENSURE THAT POWER SUPPLY AGREES WITH
1. POWER WIRING AND GROUDING OF EQUIPMENT
HEATER THERMAL OVERLOAD PROTECTOR
(MAX.20AMP. NON-INDUCTIVE FULL LOAD CURRENT)
HEATER#1
HEATER#2
4
6
8
0
1
2
FACTORY WIRING
FIELD WIRING
LEGEND :
LEGEND :
L
N
220-240V/1pH/50Hz
220-240V/1pH/60Hz
POWER SUPPLY
WHT
WHT
WHT
A
TO CONDENSING UNIT.
CONTROL WIRING
220-240 VAC
C2
C1
NOTES :
COOLING - HEATING
SWITCH
COOL
h
TO COOLING
with EXTRA HI-BLK wire when high speed/cfm
Remove HI-BR wire FROM TB-1 and replace
BLK
For 4 speeds only
EXTRA-HI
MOTOR
BLOWER
WHT
WHT
RED
BRW
BLU
B
HI
COM
LOW
MED
WHT
RED
is required in the field.
HEAT
TO HEATING
0350374C
3 SPEED
SWITCH
LOW
OFF
HI
MED
MANUAL RESET#1
MANUAL RESET#2
AUTO RESET#2
AUTO RESET#1
5
3
4
1
2
6
CONCEALED FAN COIL UNITS
COOLING-HEATING
MCD 530-536 DB/D1
MCD 048-060 DB/D1
MCDA 30-A36 DB/D1
MCDB 42-B60 DB/D1
MS_SVN004_EN.indd 2
MS_SVN004_EN.indd 2
21-Nov-14 10:29:58
21-Nov-14 10:29:58
