25
GB
2
Water quality standard
Items
/RZWRPLGUDQJH
temperature water system
Tendency
Recirculating
water
>7&@
>7)@
0DNHXS
water
Corrosive
Scale
IRUPLQJ
Standard
items
S+&>)@
a
a
c
c
(OHFWULFFRQGXFWLYLW\ P6P&>)@
ȝVFP&>)@
30 or less
[300 or less]
30 or less
[300 or less]
c
c
Chloride ion
(mg Cl
Ɛ
50 or less
50 or less
c
6XOIDWHLRQ
PJ62
Ɛ
50 or less
50 or less
c
$FLGFRQVX
(mg
CaCO
3
Ɛ
50 or less
50 or less
c
Total hardness (mg CaCO
3
Ɛ
70 or less
70 or less
c
Calcium hardness (mg CaCO
3
Ɛ
50 or less
50 or less
c
Ionic silica
(mg SiO
2
Ɛ
30 or less
30 or less
c
5HIHU
ence
items
,URQ
PJ)HƐ
1.0 or less
0.3 or less
c
c
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PJ&XƐ
1.0 or less
0.1 or less
c
6XO¿GHLRQ
PJ6
Ɛ
not to be
detected
not to be
detected
c
Ammonium ion
(mg NH
Ɛ
0.3 or less
0.1 or less
c
5HVLGXDOFKORULQH
PJ&OƐ
0.25 or less
0.3 or less
c
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PJ&2
2
Ɛ RUOHVV
RUOHVV
c
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±
±
c
c
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(TXLSPHQW-5$*/(
3
Consult with a specialist about water quality control methods and
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4
When replacing a previously installed air conditioning device (even when
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DQDO\VLVDQGFKHFNIRUSRVVLEOHFRUURVLRQ
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SULRUVLJQVRIFRUURVLRQ
,IWKHZDWHUTXDOLW\OHYHOKDVGURSSHGDGMXVWZDWHUTXDOLW\EHIRUH
replacing the unit.
8.4. Pump
interlock
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circulating through the pipes.
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EORFNVIRULQWHUORFNLQJ7%WKDWFDQEHIRXQGRQWKHXQLW
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SUHVVXUHYDOYH3:ZLWKDPLQLPXPFXUUHQWRIP$RUOHVVWRSUHYHQWPLVV
detection due to poor connection.
3XPSLQWHUORFNFRUGVRISDUWVRIDSSOLDQFHVIRUKHDWVRXUFHXVHVKDOOQRWEH
OLJKWHUWKDQSRO\FKORURSUHQHVKHDWKHGÀH[LEOHFRUGGHVLJQ,(&
[Fig. 8.4.1] (P.4)
A
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[Fig. 8.4.2] (P.4)
7KLVFLUFXLWLVIRULQWHUORFNLQJRIWKHKHDWVRXUFHXQLWRSHUDWLRQDQGWKHZDWHU
circuit pump.
A
Heat source unit
B
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C
7RQH[WKHDWVRXUFHXQLW
D
Operation ON signal
E
Pump interlock
X :
Relay
FS :
Flow
switch
3
0DJQHWLFFRQWDFWRUIRUZDWHUFLUFXLWSXPS
MP
: Water circuit pump
MCB :
Circuit
breaker
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Terminal
No.
7%
Output
Relay contacts output
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Rated load: 1A
Operation
:KHQVHWWLQJ1RIRU'LSVZLWFK6:
Dip switch
6:LV21
is OFF.
The relay closes during compressor operation.
6:2))21
1
2
3
5
7
10
1
0
1
0
1
0
0
1
1
1
:KHQVHWWLQJ1RIRU'LSVZLWFK6:'LSVZLWFK
6:LV21LV
ON.
7KHUHOD\FORVHVGXULQJUHFHSWLRQRIFRROLQJRUWKHKHDW
LQJRSHUDWLRQVLJQDOIURPWKHFRQWUROOHU
1RWH,WRXWSXWVHYHQLIWKHWKHUPRVWDWLV2))ZKHQWKH
FRPSUHVVRULVQRWRSHUDWLQJ
:DWHUÀRZUDWHFRQWURO
3UHFDXWLRQVRQLQVWDOODWLRQZRUNIRUZDWHUÀRZUDWHFRQWURODUHDVIROORZV
1
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DOUHDG\LQVWDOOHG>)LJ@
2
&RQQHFWWKHSRZHUFDEOHVUHTXLUHGIRUZDWHUÀRZUDWHFRQWURO>)LJ@
3
:KHQXVLQJD9'&RXWSXWGHYLFHWKHZDWHUÀRZUDWHFDQEHDGMXVWHG
without operating the heat source unit.
&KHFNWKHÀRZUDWHRIZDWHUVXSSOLHGWRWKHKHDWVRXUFHXQLWLVZLWKLQWKH
allowable range.
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4
.
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valve.
2. Power on the pump and motor valve.
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0RWRUYDOYHVSHFL¿FDWLRQ9IXOO\RSHQ9FORVHG
:KHQ9LVRXWSXWFKHFNWKHÀRZUDWHRIZDWHUVXSSOLHGWRWKHKHDW
VRXUFHXQLWGRHVQRWH[FHHGWKHXSSHUOLPLW
:KHQ99LVRXWSXWFKHFNWKHÀRZUDWHRIZDWHU
supplied to the heat source unit is not less than the lower limit.
0RWRUYDOYHVSHFL¿FDWLRQ9FORVHG9IXOO\RSHQ
:KHQ9LVRXWSXWFKHFNWKHÀRZUDWHRIZDWHUVXSSOLHGWRWKHKHDW
VRXUFHXQLWGRHVQRWH[FHHGWKHXSSHUOLPLW
:KHQ99LVRXWSXWFKHFNWKHÀRZUDWHRIZDWHU
supplied to the heat source unit is not less than the lower limit.
Status
A
%
%
C
Condition
When
stopped
When all heat source units
DUHLQWKHUPRRIIVWDWH
While
compressor
is in
operation
6:
= ON
6:
= OFF
6:
= OFF
10 V
10 V
5 V
(Minimum
ZDWHUÀRZ
UDWH
5~0 V
6:
= ON
0 V
0 V
9
(Minimum
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UDWH
a9
8SWRDSSUR[LPDWHO\RXWSXWÀXFWXDWLRQFDQEHFDXVHG
Model
:DWHUÀRZUDWHUDQJH
P72~P120
7.5~12.5 HP
3.0~7.2 m
3
Ka/PLQ
3a3
15~20 HP
aP
3
Ka/PLQ
4
&RQQHFWWKHVLJQDOFDEOHVIRUSXPSLQWHUORFN7%DQGDQGIRUPRWRU
YDOYHRSHQLQJFRPPDQG7%DQG
5
,IWKHZDWHUÀRZUDWHKDVQRWEHHQFKHFNHGLQ
3
DERYHFKHFNWKHÀRZUDWH
RIZDWHUVXSSOLHGWRWKHKHDWVRXUFHXQLWLVZLWKLQWKHDOORZDEOHUDQJH
0RWRUYDOYHVSHFL¿FDWLRQ9IXOO\RSHQ9FORVHG
1. Power on the pump, motor valve, and unit.
6HW'LSVZLWFK6:WR21DQG1RIRU'LSVZLWFK6:WR
ON.
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VXSSOLHGWRWKHKHDWVRXUFHXQLWGRHVQRWH[FHHGWKHXSSHUOLPLW
6HW'LSVZLWFK6:WR21DQG1RIRU'LSVZLWFK6:WR
OFF.
2SHUDWHWKHLQGRRUXQLWFRROLQJRUKHDWLQJPRGHIURPWKHUHPRWH
controller.
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WKHÀRZUDWHRIZDWHUVXSSOLHGWRWKHKHDWVRXUFHXQLWLVQRWOHVVWKDQ
the lower limit.
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1. Power on the pump , motor valve, and unit.
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VXSSOLHGWRWKHKHDWVRXUFHXQLWGRHVQRWH[FHHGWKHXSSHUOLPLW
6HW'LSVZLWFK6:WR21DQG1RIRU'LSVZLWFK6:WR
ON.
2SHUDWHWKHLQGRRUXQLWFRROLQJRUKHDWLQJPRGHIURPWKHUHPRWH
controller.
:KHQDOOKHDWVRXUFHXQLWVDUHRSHUDWHGLQWKHUPRRIIVWDWHFKHFN
WKHÀRZUDWHRIZDWHUVXSSOLHGWRWKHKHDWVRXUFHXQLWLVQRWOHVVWKDQ
the lower limit.