5 Installation
Installation manual
19
RWEQ96~432TAYD
∗
+ RWEQ96~432TATJ
∗
VRV W T-Series water-cooled system air conditioner
2 Maximum flow rate
D
:
Model
D
RWEQ96~144
39.6 gpm (150 l/min)
3 Hydronic flow rate
E
:
The value
E
is the design flow rate calculated by the hydronic
engineer when designing the building system.
Correct valve selection is done when following conditions are met:
(B≥C) AND (E≤A≤D)
For further selection requirements, refer to "4.5 Field wiring" on
page 19.
Check the minimum flow rate of the system during commissioning to
ensure good operation.
During the initialization process of the outside unit, the output signal
will trigger a flow rate of
B
(50%). The installer should make sure
that a flow rate can be checked in the individual hydronic system of
each unit. If this value is not matching the required flow, the installer
should troubleshoot the hydronic system to solve the problem and
ensure the correct flow rate.
4 .5
Field wiring
4 .5 .1
Safety device requirements
The power supply must be protected with the required safety
devices, i.e. a main switch, a slow blow fuse on each phase and/or a
circuit breaker.
Selection and sizing of the wiring should be done in accordance with
the applicable legislation based on the information mentioned in the
table below.
Model
Minimum circuit
ampacity
Recommended
fuses
RWEQ96TATJ
∗
28.8 A
35 A
RWEQ120TATJ
∗
36.5 A
45 A
RWEQ144TATJ
∗
44.6 A
50 A
RWEQ192TATJ
∗
28.8+28.8 A
35+35 A
RWEQ216TATJ
∗
28.8+36.5 A
35+45 A
RWEQ240TATJ
∗
36.5+36.5 A
45+45 A
RWEQ264TATJ
∗
36.5+44.6 A
45+50 A
RWEQ288TATJ
∗
44.6+44.6 A
50+50 A
RWEQ312TATJ
∗
28.8+28.8+36.5 A
35+35+45 A
RWEQ336TATJ
∗
28.8+36.5+36.5 A
35+45+45 A
RWEQ360TATJ
∗
36.5+36.5+36.5 A
45+45+45 A
RWEQ384TATJ
∗
36.5+36.5+44.6 A
45+45+50 A
RWEQ408TATJ
∗
36.5+44.6+44.6 A
45+50+50 A
RWEQ432TATJ
∗
44.6+44.6+44.6 A
50+50+50 A
RWEQ96TAYD
∗
13 A
15 A
RWEQ120TAYD
∗
16.5 A
20 A
RWEQ144TAYD
∗
20.2 A
25 A
RWEQ192TAYD
∗
13.0+13.0 A
15+15 A
RWEQ216TAYD
∗
13.0+16.5 A
15+20 A
RWEQ240TAYD
∗
16.5+16.5 A
20+20 A
RWEQ264TAYD
∗
16.5+20.2 A
20+25 A
RWEQ288TAYD
∗
20.2+20.2 A
25+25 A
RWEQ312TAYD
∗
13.0+13.0+16.5 A
15+15+20 A
RWEQ336TAYD
∗
13.0+16.5+16.5 A
15+20+20 A
RWEQ360TAYD
∗
16.5+16.5+16.5 A
20+20+20 A
RWEQ384TAYD
∗
16.5+16.5+20.2 A
20+20+25 A
RWEQ408TAYD
∗
16.5+20.2+20.2 A
20+25+25 A
RWEQ432TAYD
∗
20.2+20.2+20.2 A
25+25+25 A
▪ Phase and frequency: 3 ~ 60 Hz
▪ Voltage: 208/230 V (RWEQ96~432TATJ
∗
),
460 V (RWEQ96~432TAYD
∗
),
▪ Transmission line section insulated: AWG 18~16, maximum
length is 3280 ft (1000 m). If the total transmission wiring exceeds
these limits, it may result in communication error.
NOTE
When using residual current operated circuit breakers, be
sure to use a high-speed type 300 mA rated residual
operating current.
5
Installation
5 .1
Unpacking and placing the unit
5 .1 .1
To open the outside unit
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING
To gain access to the unit, front plates need to be opened as follows:
11×
A
B
Once the front plate A is open, the control box can be accessed. See
"5.1.2 Accessing the control box" on page 19.
For service purposes, the push buttons on the main PCB need to be
accessed. To access these push buttons, the control box cover does
not need to be opened. See "7.2.3 To access the field setting
components" on page 36.
To install the water piping and field wiring, front plate B has to be
removed.
5 .1 .2
Accessing the control box
NOTE
Do not apply excessive force when opening the control box
cover. Excessive force can deform the cover, resulting in
entering of water to cause equipment failure.
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