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
/
/
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/
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/
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A6 Duct
Cooling and heating
●
●
●
●
●
●
●
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Ceiling-floor
Cooling and heating
/
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/
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/
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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