Daikin RXYQ30PYNKE [18/24] English

Daikin RXYQ30PYNK [18/24] English
14 English
[Shutoff valve operation procedure]
When operating the shutoff valve, follow the procedure instructed
below.
Note
Do not open the shutoff valve until “10. CHECKING OF DEVICE
AND INSTALLATION CONDITIONS” are completed. If the shutoff
valve is left open without turning on the power, it may cause refrig-
erant to buildup in the compressor, leading insulation degrada-
tion.
Be sure to use the correct tools.
The shutoff valve is not a back-seat type. If forced it to open, it
might break the valve body.
When using a service port, use the charge hose.
After tightening the cap, make sure no refrigerant gas is leaking.
[Tightening torque]
The sizes of the shutoff valves on each model and the tightening
torque for each size are listed in the table below.
<Size of Shutoff Valve>
<Tightening torque>
(Refer to figure 35)
1. Service port
2. Cap
3. Hex holes
4. Shaft (valve body)
5. Seal section
[To open]
1.
Remove the cap and turn the shaft counterclockwise with the
hexagon wrench (JISB4648).
2.
Turn it until the shaft stops.
3.
Make sure to tighten the cap securely.
(For the tightening torque, refer to the item <Tightening Torque>.)
[To close]
1.
Remove the cap and turn the shaft clockwise with the hexagon
wrench (JISB4648).
2.
Securely tighten the valve until the shaft contacts the main body
seal.
3.
Make sure to tighten the cap securely.
(For the tightening torque, refer to the item <Tightening Torque>.)
[How to Check How Many Units are Connected]
It is possible to find out how many indoor or outdoor unit in the system are turned on by operating the push button on the PC-board (A1P) of out-
door unit (In case of multi system master unit).
Follow the procedure below to check how many indoor or outdoor units are turned on.
Note
Press the “MODE button” (BS1) if you get confused while operating.
This returns to Setting Mode 1 (default).
8HP type 10HP type 12HP type
Liquid side
shutoff
valve
φ 9.5
The 12HP type corresponds to the 12.7-diameter
onsite piping using the included piping.
Gas side
shutoff
valve
φ 19.1
φ 25.4
The 10HP type corresponds to the
22.2-diameter onsite piping using
the accessory pipe.
The 12HP type corresponds to the
28.6-diameter onsite piping using
the accessory pipe.
Shutoff
valve size
Tightening torque N·m (Turn clockwise to close)
Shaft (valve body)
Cap
(valve lid)
Service port
φ 9.5 5.4 - 6.6
Hexagonal
wrench
4 mm
13.5 - 16.5
11.5 - 13.9
φ 12.7 8.1 - 9.9 18.0 - 22.0
φ 15.9 13.5 - 16.5
Hexagonal
wrench
6 mm
22.5 - 27.5
φ 19.1
27.0 - 33.0
Hexagonal
wrench
8 mm
φ 25.4
(LED display:
h
...OFF
i
...ON
j
...Blinking
...Uncertain)
LED display
H1P H2P H3P H4P H5P H6P H7P
(1) Press the MODE button (BS1) once, and set the MONITOR MODE (H1P: Blinking).
jhhhhhh
(2) Press the SET button (BS2) the number of times until the
LED display matches that at right.
For checking the number of
outdoor units: eight times
jhhihhh
For checking the number of
indoor units: five times
jhhhihi
(3) Press the RETURN button (BS3) and read the number of units from the display of
H2P through H7P.
[Reading Method]
The display of H2P through H7P should be read as a binary number, with
j
standing
for “1” and
h
standing for “0”.
j ∗∗∗∗∗∗
jhjhjjh
(4)
Press the MODE button (BS1) once. This returns to
Setting Mode 1
(default).
hhihhhh
Ex: For the LED display at right, this would be 010110”,
which would mean 22 units are connected.
Note: “000000” indicates 64 units.
32 × 0 + 16 × 1 + 8 × 0 + 4 × 1 + 2 × 1 + 1 × 0 = 22 units
01_EN_3P226891-7A.fm Page 14 Tuesday, June 3, 2008 2:35 PM

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