Specifications

P
P
P
P
RE
SSU
RE
G
A
UGE
GA
TE
A
A
VA
LV
E
GA
TE
A
A
VA
LV
E
BALAN
C
IN
G
VA
L
V
E
T
HERM
O
METE
R
F
LEXIBLE
GA
TE V
A
A
A
V
V
L
VE (LOWER
LL
POSITION FOR DRAINAGE
)
AIR
VENT (INST
ALL
T
T
HIGHEST POSITION
)
F
AN
CO
I
L
UNIT/AIR HANDLING UNIT
L
GA
TE
A
A
VA
L
V
E
T
HERM
O
METE
R
GA
TE V
E
A
A
A
V
V
L
V
L
L
E
GA
TE V
A
A
A
V
V
L
V
L
L
E
VA
L
V
E
S
TRAINE
R
C
HE
C
K
VA
LV
E
M
AKE U
P
VA
L
V
E
BYP
P
A
A
L
V
L
L
E
(DIFFER ENT
P
RE
SSU
RE
G
A
UGE
GA
A
VA
E
GA
A
T
H
ERM
O
METE
R
F
LEXIBLE
A
A
L
VE (LOWER
LL
AIR
VENT
(INST
ALL
T
T
HIGHEST POSITION
)
F
A
N
CO
I
L
UNIT/AIR HANDLING UNIT
L
GA
TE
A
A
VA
LV
E
T
HERMOMETE
R
A
A
L
V
L
L
E
VA
LV
E
S
TRAINE
R
VA
L
V
L
L
E
M
AKE
UP
VA
L
V
E
BYP
P
A
A
L
V
L
L
(DIFFER ENT
TYPE
)
M4AC / MAC / 020 / 025 / 030 C/CR, M5AC 020 / 025 / 030 CR
M4AC / MAC / 040 / 050 / 060 C/CR, M5AC 040 / 050 / 055 CR
M4AC / MAC 080 / 100 / 120 / 150 C/CR
• Do not allow water to remain in the water pipes if the unit is not operating for a long period.
Water must be drained out if the unit is not running during winter. Failing to do so would cause the pipe
to crack.
• Do not drink the chilled water in the unit.
!
CAUTION
Figure 2
52
PRESSURE GAUGE
GATE
VALVE
GATE
VALVE
BALANCING
VALVE
THERMOMETER
FLEXIBLE
GATE VALVE
(LOWER POSITION
FOR DRAINAGE)
AIRVENT (INSTALL
HIGHEST POSITION)
FAN COIL UNIT/AIR HANDLING UNIT
GATE
VA LV E
Figure 3
THERMOMETER
GATE
VA LV E
GATE
VA LV E
BALANCING
VALVE
STRAINER
CHECK
VALVE
MAKE UP
VALVE
PRESSURE
DIFFERENTIAL
VA LV E
FLEXIBLE