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2. EXTERNAL DIMENSIONS
DATA G10
HEAT SOURCE UNITS
WY
2. EXTERNAL DIMENSIONS
Service space
(front side)
Service space
(front side)
T
op view
550
60
60
20
74
11
6
0
(60)
The space for
control box
replacement
450
600
170
350
725
600
450
170
11
0
0
550
(530)
(102)
(53)
506 (503~509)
470 (467~473)
834
720
11
0
0
141
213
240
2 x 2-14 x 20 Oval hole
140
75
608
563
584
83
58
121
226
234
18
78
168
433
548
(550)
22
22
40
40
550
880
2 x 2-14 x 20 Oval hole
(Installation support hole)
(880)
80
80
23
23
Control box
Service
panel
(Installation support hole pitch)
(Mounting pitch)
(Installation support
hole pitch)
(Mounting pitch)
8
8
7
6
5
4
3
2
Refrigerant service
valve <Gas>
Refrigerant service
valve <Liquid>
1
(front and back, 2 points)
Note 8*
Detachable leg
880
ø
22.2 Brazed
ø9.52 Brazed
ø
19.05 Brazed
Gas
Liquid
PQHY
-P300YHM-A
PQHY
-P250YHM-A
PQHY
-P200YHM-A
*1
*1
*1
Fig. B
Fig. A
Note 1.
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)
Note 2.
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.
Note 3.
T
ake notice of service space as Fig.
A. (In case of single
installation, 600mm or more of back space as front space
makes easier access when servicing the unit from rear side)
Note 4.
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.
Note 5.
Environmental condition for installation; -20~40°C (DB)
as indoor installation.
Note 6.
In case the temperature around the heat source unit has
possibility to drop under 0°C, be careful for the following
point to prevent the pipe burst by the water pipe freeze-up.
· 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.
Note 7.
Ensure that the drain piping is downward with a pitch of
more than 1/100.
Note 8.
The detachable leg can be removed at site.
Note 9.
At brazing of pipes, wrap the refrigerant service valve
with wet cloth and keep the temperature of
refrigerant service valve under 120°C.
ø45 Knockout hole
ø34 Knockout hole
ø52 or ø27 Knockout hole
For pipes
For wires
For transmission cables
Front through hole
Front through hole
Front through hole
Front through hole
140 x 77 Knockout hole
ø65 or ø40 Knockout hole
Front through hole
W
ater pipe
Drain pipe
inlet
outlet
Rc1-1/2 Screw
Rc1-1/2 Screw
Rc3/4 Screw
Specifications
Usage
NO.
Connection specifications for
the refrigerant service valve
Model
Connecting pipe specifications
*1. Connect by using the connecting pipes that are supplied.
<Accessories>
· Refrigerant (Liquid) conn. pipe ·····1 pc.
(P200/P250/P300 ; Packaged in the accessory kit)
· Refrigerant (Gas) conn. pipe ·····1 pc.
(P200/P250/P300 ; Packaged in the accessory kit)
PQHY
-P200, 250, 300YHM-A
Unit : mm
