Gree MULTI18HP230V1CO Installation Manual

Piping Design and Layout
The piping design and layout are critical factors for the overall performance and reliability of the
system. Find the desired locations for each indoor unit and the outdoor unit. Then measure and
record the piping lengths and heights as directed below to qualify the piping design and layout.
First, measure and record the piping length (L1,L2, L3….Ln) from the outdoor unit to each indoor unit.
NOTE: Min. refrigerant line length between the indoor and outdoor units is 10 ft. (3 m).
L1=
L2=
L3=
L4=
L5=
Second, find the indoor units with the greatest vertical distance from the outdoor unit. Measure the maximum
vertical height (H1) from the bottom of the outdoor unit to the bottom of the highest mounted indoor units.
H1=
Third, find the two indoor units with the greatest vertical distance from each other. Measure the maximum
vertical height (H2) between those two indoor units from bottom of one unit to bottom of the other unit.
H2=
INDOOR UNIT INSTALLATION
L2
Ln
L1
H1
H2
13
POWER AND WIRING INSTALLATION
L1
L
2
T
o the power supply
L1 L2
C
C
D
C
cable
T
cable
T
cable
Power cord
L1 L2
T
o unit A
Connecting
cable
To unit B
Connecting
cable
T
o unit C
Connecting
cable
T
o unit D
Connecting
cable
L1
L
2
L1 L2
C
C
D
C
cable
T
cable
T
cable
P
cable
T
cable
T
cable
To the power supply
C
C
D
C
E
C
L1
L2
L1 L2
To unit A
Connecting
cable
To unit B
Connecting
cable
To unit C
Connecting
cable
To unit D
Connecting
cable
To unit E
Connecting
cable
P
Power cord
L1 L2
cable
T
cable
C
C
D
C
E
C
L1
L2
L1 L2
cable
T
cable
T
cable
P
cable
T
cable
30K Unit
36K and 42K Unit
Outdoor Unit
Electrical Diagrams
28
TWD-1518 multi21+ install_printer.qxp_Layout 1 3/22/17 9:41 AM Page 29

Gree MULTI18HP230V1CO Specifications

General

Brand	Gree
Model	MULTI18HP230V1CO
Category	Air Conditioner
Language	English