Carrier 38QUS012D8S User manual

Contents i
Energy Related Products
SUPER DC INVERTER SERIES
Service Manual

Contents
Contents i
Part 1 General Information .................................................................................................... 1
Part 2 Indoor Units ................................................................................................................. 5
Part 3 Outdoor Units ............................................................................................................ 55
Part 4 Installation ................................................................................................................. 68
Part 5 Electrical Control System ......................................................................................... 95
Caution: Risk of fire/flammable materials
※The specifications, designs, and information in this book are subject to change without notice for
product improvement.

General Information
General Information 1
Part 1
General Information
1. Model List.............................................................................................2
2. External Appearance ...........................................................................3
2.1 Indoor Units............................................................................................................... 3
2.2 Outdoor Units............................................................................................................ 3
3. Nomenclature.......................................................................................4

Model List
General Information 2
1. Model List
1.1 Indoor Units
(capacity multiplied by 1000Btu/h)
Type
Function
12
18
24
30
36
42
48
60
Compact Cassette
Cooling and heating
●
●
/
/
/
/
/
/
Super slim cassette
Cooling and heating
/
/
●
/
●
/
●
●
A6 Duct
Cooling and heating
●
●
●
●
●
●
●
●
Ceiling-floor
Cooling and heating
/
●
●
/
●
/
●
●
1.2 Outdoor Units
Universal Outdoor unit Model
Compressor type
Compressor Brand
Matched indoor units
38QUS012D8S*
Rotary
GMCC
42QTD012D8S*
42QSS012D8S*
38QUS018D8S*
Rotary
GMCC
42QTD018D8S*
42QSS018D8S*
42QZL018D8S*
38QUS018R8S*
Rotary
GMCC
42QTD018R8S*
42QSS018R8S*
42QZL018R8S*
38QUS024R8S*
Rotary
GMCC
42QTD024R8S*
42QSS024R8S*
42QZL024R8S*
38QUS030R8S*
Rotary
GMCC
42QSS030R8S*
38QUS036R8S*
Rotary
GMCC
42QTD036R8S*
42QSS036R8S*
42QZL036R8S*
38QUS036R8T*
Rotary
GMCC
38QUS042R8S*
Rotary
GMCC
42QSS042R8S*
38QUS048R8T*
Rotary
GMCC
42QTD048R8S*
42QSS048R8S*
42QZL048R8S*
38QUS060R8T*
Rotary
GMCC
42QTD060R8S*
42QSS060R8S*
42QZL060R8S*

External Appearance
General Information 3
2. External Appearance
2.1 Indoor Units
Compact cassette
Super Slim Cassette
Ducted
Ceiling-Floor
2.2 Outdoor Units
Single fan outdoor unit
Double fan outdoor unit

Nomenclature
General Information 4
3. Nomenclature
3 8 Q H C 0 0 9 R 8 S 2 *
U nit type C ustom er code
38 :condensing unit G :G erm any
42 :indoor unit N :N ordic
M ode S ystem type
K :cooling only D efault:1 drive 1
Q :reversible 2:1 drive 2
3:1 drive 3
U nit T ype 4:1 drive 4
U ：O utdoor unit 5:1 drive 5
H ：H igh w all
S ：D ucted P ow er supply
T：C assette S :S igle phase
Z：U nder-ceiling T:Three phase
F：C onsole
R efrigerant type
O D P late series: S D efault:R 410a
ID P late series 8:R 32
C :15C P :O P
B :A B A :C onsole
D :C assette S :D ucted
L: C eiling-Floor P roduct type
D :D C Inverter
C ooling C apacity B T U E :E E V +D C m otor
009,012,018,024,036,048,060
R :485 P ortocol

Indoor Units
Indoor Units 5
Part 2
Indoor Units
Super Slim Cassette Type...................................................6
A6 Duct Type ......................................................................22
Ceiling & Floor Type ..........................................................41

Super Slim Cassette Type
Indoor Units 6
Super Slim Cassette Type
1. Features ...........................................................................7
2. Dimensions ....................................................................10
3. Service Space ................................................................11
4. Wiring Diagrams ............................................................12
5. Air Velocity Distributions (Reference Data) .................13
6. Electric Characteristics.................................................16
7. Sound Levels .................................................................17
8. Accessories....................................................................18
9. The Specification of Power ...........................................19
10. Field Wiring ..................................................................20

Features
Indoor Units 7
1. Features
1.1Overview
Compact design, super slim body size, less space requiring in installation
Each louver can be separately controlled, more comfort air blowing is possible.
1.2 Fresh air intake function
Fresh air fulfills air quality more healthy and comfortable.
Ventilation motor is optional to increase the effect of fresh air.
1.3Optional ionizer generator
Ionizer generator is optional to get refreshing air to your room.
Ionizer can be switched on or off by remote controller.
When pressing the Clean Air button on the remote controller, Ionizer will work and the indicator light on
display board will shine.
1.4 External air duct design
Reserve external air duct, more flexible for the air supply.
Ionizer generator
connector
Ventilation motor
connector

Features
Indoor Units 8
1.5 Built-in draining pump
Due to the improvement of structure, more convenient to repair or replace the draining pump.
Built-in draining pump to make sure condensed water drain out reliably.
1.6Terminals for alarm lamp and long-distance on-off controller connection are
standard
Reserve terminals for the connection of alarm lamp and long-distance on-off controller, more human
control.
Draining Pump

Features
Indoor Units 9
1.7Twins Combination(18k-30k)
The units can be installed as Twin systems: one outdoor unit can connect with two indoor units. The
indoor units can be combined in any of the different available ratings.
Alarm lamp
Long-distance on-off controller

Dimensions
Indoor Units 10
2. Dimensions
840
840
950
950
C
Test mouth & Test cover
Drain hole
32
Wiring connection port
680
780
780
680
136
126
91
196
132
A
A
B
AA
B
A
A
B
A
B
Service hole for
draining pump
Fresh air intake
75
55
80
80
4-install hanger
Gas side
Liquid side
E-parts box
135
90
Panel
Body
92929292
DD
92 92
D
D
DD
92
9292
92
92 92 92 92
D
D
Unit: mm
Model
A
B
C
D
42QTD018R8S*
160
75
205
50
42QTD024R8S*
42QTD036R8S*
160
95
245
60
42QTD048R8S*
42QTD060R8S*
160
95
287
60

Service Space
Indoor Units 11
3. Service Space
>1000mm
>1000mm
>1000mm
>1000mm
Chart 3
A
Drain side Tubing side
(Unit: mm)
680(Hook-location)
780(Hook-location)
84 0(Body)
84 0(Body)
880(Ceiling hole)
880(Ceiling hole)
95 0(Panel)
95 0(Pane l)
Necessary room
>2500mm
out let intle t outlet
ground
Chart 1
Chart 4
A
No te:
Nut
Body
Ceiling 880mm
Hook
B
Panel
Chart 2
Body
Chart 5
Central hole
Bolt M6X12 Inst allation paperboard
180 00-24000Btu/h(R 22) Series A 26 0mm
36000-48000Btu/h(R 22) Series A 330mm
≥
≥
No te:
180 00- 24000B tu/h(R 22) Seri es B= 240mm
360 00- 48000Btu /h(R 22) Series B= 310mm

Wiring Diagrams
Indoor Units 12
4. Wiring Diagrams
42QTD018R8S*, 42QTD024R8S*, 42QTD036R8S*, 42QTD048R8S*, 42QTD060R8S*

Air Velocity Distributions (Reference Data)
Indoor Units 13
5. Air Velocity Distributions (Reference Data)
18-24K:
Cooling:
Heating:

Air Velocity Distributions (Reference Data)
Indoor Units 14
30-42K:
Cooling:
Heating:

Air Velocity Distributions (Reference Data)
Indoor Units 15
48-55K：
Cooling:
Heating:

Electric Characteristics
Indoor Units 16
6. Electric Characteristics
Model
Indoor Unit
Power
Supply
Hz
Voltage
Min
Max
MFA
42QTD018R8S*
50
220-240V
198V
254V
10
42QTD024R8S*
50
220-240V
198V
254V
10
42QTD036R8S*
50
220-240V
198V
254V
10
42QTD048R8S*
50
220-240V
198V
254V
/
42QTD060R8S*
50
220-240V
198V
254V
/
Notes:
MFA: Max. Fuse Amps. (A)

Sound Levels
Indoor Units 17
7. Sound Levels
1.4m
Microphone
Model
Noise Power dB(A)
Noise level dB(A)
H
M
L
42QTD018R8S*
57
45
40
37
42QTD024R8S*
61
46
43
40
42QTD036R8S*
63
51
49
46
42QTD048R8S*
65
52
50
49
42QTD060R8S*
65
53
50
48

Accessories
Indoor Units 18
8. Accessories
Name
Shape
Quantity
Installation Fittings
Installation paper board
1
Tubing & Fittings
Soundproof / insulation sheath
1
Drainpipe Fittings
Out-let pipe sheath
1
Out-let pipe clasp
1
Drain joint
1
Seal ring
1
Remote controller & Its
Frame(The product you
have might not be
provided the following
accessories)
Remote controller & Its Frame
1
Remote controller holder
1
Mounting screw(ST2.9×10-C-H)
2
Remote controller manual
1
Alkaline dry batteries (AM4)
2
Others
Owner's manual
1
Installation manual
1
Installation accessory
(The product you have
might not be provided the
following accessories
Expansible hook
4
Installation hook
4
Orifice
1