34| SAHP - Installation Manual
V3 June 2021US - SD667052
REPLACEMENT
OF PARTS continued
10.4 Remove existing heat pump
(a)
Following successfully recovery of refrigerant, proceed
ÌÀiÛiÌ i i>Ì«Õ«{ÝnÕÌÃÃiVÕÀiÌ i i>Ì
pump to the SAHP cylinder top base. Remove these
nÕÌÃ]ii«>Ã>vi«>ViÌÕÃi>ÌiÀ°
L®
"Ì ivÀÌivÌ >`Ã`ivÌ iÕÌ]ÓÝÎÉn»««iÃ
protrude from the SAHP cylinder top base. Cut these
pipes using appropriate refrigeration pipe cutting
equipment. Once completed, ensure to prevent debris
from entering the newly exposed pipework.
(c)
Disconnect the suction and liquid line evaporator pipe
work from the respective service valves highlighted in
w}ÕÀiÇ°
(d)
Disconnect the sensor cable and power supply cables
to the heat pump, immersion heater and immersion
heater rocker switch from the terminal blocks located at
the front of the unit. Ensure to appropriately mark these
cables for reconnection later on.
(e)
Lift and remove the existing heat pump plate. Ensure
to take care when removing the heat pump as this will
be required to be couriered back to SAHP for
investigation for claims under warranty.
10.5 Installing replacement heat pump
>®
V>ÌiÌ iÀi«>ViiÌ i>Ì«Õ«ÌÌ i{Ýn
bolts protruding from the SAHP cylinder top plate.
-iVÕÀi i>Ì«Õ««>ViÕÃ}{ÝnÕÌÃÀiÛi`
in section 10.4.
L®
Ƃ}Ì iV`iÃiÀyÜ>`ÀiÌÕÀ¥»ÀivÀ}iÀ>Ì
V««iÀ««iÌÌ i«ÀÌÀÕ`}ÎÉn»V`iÃiÀ
refrigeration copper pipe from the SAHP cylinder top
plate. From front, the right hand side copper pipe,
ViVÌi`ÌÌ iV«ÀiÃÃÀÃÌ iV`iÃiÀyÜ]
the left hand side copper pipe, connected to the
receiver is the condenser return.
NOTE: incorrect condenser connect may result to
damage to the unit.
V®
ÌÕiÌLÀ>âiÌ iÀiëiVÌÛi¥»>`ÎÉn»
refrigeration copper pipes together. Ensure to use
Nitrogen when brazing to prevent carbonization within
the pipework during brazing.
SECTION 11