Haier 1U71S2SS5FA - Page 15

15
NOTICE
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)RUQHZLQVWDOODWLRQVXVHWKHVWDQGDUGSLSHVL]HV
:KHQXVLQJH[LVWLRQJSLSHVVL]HXSLVDOORZHGDV
mentioned in the table above.
$GGLWLRQDOUHVWULFWLRQVWRZDUGVDOORZDEOHSLSHOHQJWKV
as mentioned in the table 7.3 on page 13, must be
taken into account.
1RWXVLQJWKHVWDQGDUGOSLSHVL]HPD\UHVXOWLQ
FDSDFLW\GHFUHDVH7KHLQVWDOOHUPXVWDFNQRZOHGJH
WKLVDQGMXGJHWKLVYHU\FDUHIXOO\LQIXQFWLRQRIWKH
complete installation.
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([LVWLQJRUSUHLQVWDOOHGSLSLQJFDQEHXVHG
1. 3LSLQJPXVWFRPSO\ZLWKWKHFULWHULDEHORZ
 3LSLQJGLDPHWHUPXVWFRPSO\ZLWKWKHOLPLWDWLRQVDV
indicated LQSDUDJUDSK5HIULJHUDQWSLSHVL]H
 3LSLQJOHQJWKPXVWEHZLWKLQ OLPLWVRIWKHDOORZDEOH
SLSLQJOHQJWKDVLQSDUDJUDSK$OORZDEOHSLSH
length and height difference".
 3LSLQJPXVWEHGHVLJQHGIRU5326HHSDUDJUDSK
"6.2. Selection of piping material".
 3LSLQJFDQEHUHXVHGZLWKRXWFOHDQLQJZKHQ
 7RWDOZD\SLSLQJOHQJWKP
 1RFRPSUHVVRUEUHDNGRZQKDVRFFXUUHGLQWKH
history of the unit to be replaced.
 $FRUUHFWSXPSGRZQRSHUDWLRQFDQEHH[HFXWHG
2SHUDWHWKHXQLWFRQWLQXRXVO\IRUPLQXWHVLQ
cooling mode.
 ([HFXWHDSXPSGRZQRSHUDWLRQ
 5HPRYHWKHDLUFRQGLWLRQLQJXQLWVWREHUHSODFHG
• Check the contamination inside the existing piping.
If you cannot meet all these requirements, the existing
pipes must be cleaned or replaced after removing the
air conditioning units to be replaced.
 3UHSDUHWKHÀDUHFRQQHFWLRQVIRUKLJKHUSUHVVXUH
See paragraph 6.2
Cautions on handling the stem cap

7KHVWHPFDSLVVHDOHGZKHUHLQGLFDWHGE\WKHDUURZ
Take care not to damage it.
After handling the stop valve, make sure tighten the
stem cap securely. For the tightening torque, refer to
WKHWDEOHEHORZ
Check for refrigerant leaks after tightening the stem
cap.
Cautions on handling the service port

$OZD\VXVHDFKDUJHKRVHHTXLSSHGZLWKDYDOYH
depressor pin, since the service port is a Schrader
type valve.

After handling the service port, make sure to tighten
the service port cap securely. For the tightening
WRUTXHUHIHUWRWKHWDEOHEHORZ

Check for refrigerant leaks after tightening the service
port cap.
7. Refrigerant piping
7.1. Piping diagram for single split
Flare connection
ZD\VWRSYDOYH
3-way stop valve for
1U71 and 1U100
Ball valve for others
Liquid pipe
Outdoor
unit
Indoor
Unit
*DVSLSH
3LSLQJVL]HIRUVLQJOHVSOLW
Model Pipe
Diameter of
pipe
connecting
method
8666)$
8661)$
8663)$
Liquid
pipe
ĭPP
ÀDULQJ
connection
*DV
pipe
ĭPP
/LPLWDWLRQVIRURQHZD\SLSLQJOHQJWKDQG
vertical height difference for single split
Model
8666)$
8661)$
8663)$
8663)$
8663)$
2QHZD\SLSLQJ
length
less than 50 m less than 75 m
Vertical height
difference
EHWZHHQLQGRRU
DQGRXWGRRU
less than 30 m less than 30 m
,QVWDOOWKHUHPRYHGÀDUH
nuts to the pipes to be
FRQQHFWHGWKHQÀDUHWKH
pipes.
8663)$
8663)$
Liquid
pipe
ĭPP
ÀDULQJ
connection
*DV
pipe
ĭPP