MEES19K187
PQ
RY-
P
-Z(
S
)LMU
-A1
277
2. EXTERNAL DIMENSIONS
WR2-Series-575V
PQRY-P144, 168, 192ZLMU-A1
Unit: mm(in)
1
2
4
3
5
6
7
8
(1)
(1-1/8)*1
(1-1/8)
ø25.4
ø28.58 Brazed
ø28.58
Refrigerant pipe
Service valve
Diameter
Model
Connecting pipe specifications
Low pressure
High pressure
(7/8)*1
ø22.2 Brazed
PQR
Y-P144ZLMU-A1
PQR
Y-P168ZLMU-A1
PQR
Y-P192ZLMU-A1
*1.Connect by using the connecting pipes that are supplied.
Low pressure
High pressure
1450(57-1/8)
880(34-1
1
/16)
550(21-11/16)
367(14-1/2)
23(15/16)
434(17-1/8)
82(3-1/4)
421(16-5/8)
75(3)
58(2-5/16)
393(15-1/2)
140(5-9/16)
320(12-5/8)
29(1-3/16)
83(3-5/16)
426(16-13/16)
84(3-5/16)
278(11)
569(22-7/16)
216(8-9/16)
89(3-9/16)
77(3-1/16)
145(5-3/4)
721(28-7/16)
31.5(1-1/4)
31.5(1-1/4)
72.5(2-7/8)
72.5(2-7/8)
(866)(34-1/8)
(536)(21-1/8)
350(13-13/16)
(55.5)
769(30-5/16)
(55.5)
880(34-1
1/16)
600(23-5/8)
450(17-3/4)
164(6-1/2)
(2-3/16)
(2-3/16)
836(32-15/16)
600(23-5/8)
1450(57-1/8)
450(17-3/4)
164(6-1/2)
2X2-14(9/16)X31(1-1/4) Oval hole
<Accessories>
•Refrigerant (high pressure) conn. pipe • • • • • 1pc.
(P144/P168/P192 ; Packaged in the accessory kit)
•Refrigerant (low pressure) conn. pipe • • • • • 1pc.
(P144/P168/P192 ; Packaged in the accessory kit)
•W
ater stopper • • • • • 1pc.
(P144/P168/P192 ; Packaged in the accessory kit)
•Sealing material for water stopper • • • • • 1pc.
(P144/P168/P192 ; Packaged in the accessory kit)
•Sealing material for field piping (high pressure, low pressure) • • • • • 1pc. each
(P144/P168/P192 ; Packaged in the accessory kit)
•Sealing material for drain socket • • • • • 1pc.
(P144/P168/P192 ; Packaged in the accessory kit)
•Pipe cover for low pressure • • • • • 1pc.
(P144/P168/P192 ; Packaged in the accessory kit)
•Sealing material for base leg (two types) • • • • • 4pcs.each
(P144/P168/P192 ; Packaged in the accessory kit)
•Sealing material for panel • • • • • 1pc.
(P144/P168/P192 ; Packaged in the accessory kit)
The space for
control box
replacement
Service space
(front side)
Fig.A
(front side)
Service space
577
(22-3/4)
Control box
Service
panel
Refrigerant service
valve <High pressure>
Refrigerant service
valve <Low pressure>
T
ransformer
box
The space for
control box
replacement
(18-5/8)(18-9/16~18-3/4)
473(470~476)
(Mounting pitch)
(Mounting pitch)
6
7
5
1
4
3
8
8
2
Fig.B
T
op view
Front view
Right side view
Back view
Bottom view
Top view
ø
45 Knockout hole
(1-13/16)
Front through hole
(Uses when twinning kit
(optional parts) is mounted.)
ø34 Knockout hole
(1-3/8)
ø43.7 or ø22.2 Knockout hole (1-3/4) (7/8)
For pipes
For wires
For transmission
cables
Usage
NO.
Front through hole
Front through hole
Front through hole
Front through hole
Specifications
140 × 77 Knockout hole
(5-9/16) (3-1/16)
ø62.7 or ø34.5 Knockout hole (2-1/2) (1-3/8)
Rc3/4 Screw
NPT1-1/2 Screw
NPT1-1/2 Screw
inlet
outlet
Drain pipe
W
ater pipe
Note1.
Close a hole of the water piping, the refrigerant piping,
the power supply
, and the control wiring and unused knockout
holes with the putty etc. so as not to infiltrate rain water
etc.(field erection work)
Note2.
At the time of product shipment, the front side piping
specification serves as the local drainage connection.
When connecting on the rear side, please remove the
rear side plug sealing corks, and attach a front side.
Ensure there is no leak after the attachment has been fitted.
Note3.
T
a
ke notice of service space as Fig.A. (In case of single
installation, 600mm(23-5/8) or more of back space asfront space
makes easier access when servicing the unit from rear side.)
Note4.
If water pipes or refrigerant pipes stretch upward,
required space for service and maintenance due to
replacement of control box is shown in Fig.B.
Note5.
Environmental condition for installation; -20~40°C(DB) (-4~104 °F)
as
indoor
installation.
Note6.
In case the temperature around the heat source unit has
possibility to drop under 0°C(32°F) or the inlet-water temp.
drops under 10°C(50°F), be careful for the following
point to prevent the pipe burst by the water pipe freeze-up.
•
Add brine to water circuit.
•
Circulate the water all the time even if the heat source
unit is not in operation.
•
Drain the water from inside of the heat source unit when
the heat source unit will not operate for a long term.
Note7.
Ensure that the drain piping is downward with a pitch of
more than 1/100.
Note8.
At brazing of pipes, wrap the refrigerant service valve
with wet cloth and keep the temperature of
refrigerant service valve under 120°C(248 °F).
0000005755.BOOK 277 ページ ２０２０年２月２８日 金曜日 午後１時１０分
