SAHP BMTB 130 - Page 33

SAHP - BMTB Installation Manual |33
V1 Mar 2019US - SD667052
SECTION 11
!
REPLACEMENT
OF PARTS continued
10.2 Replacement of heat pump
First Contact Magic Box International to determine and
 conrmwiththemanufacturertheheatpumpisbeyondrepair.
 OncethishasbeenconrmedbyMagicBoxInternational, 
complete and return the ‘returns under warranty’ forms that
 willbesuppliedbyMagicBoxInternationaluponconrmation
the heat pump is beyond repair. A replacement Heat Pump
will subsequently be couriered to you. The steps to replace the
heat pump are outlined below.
10.3 Recover Refrigerant
R134A, as well as other refrigerants, should always be recovered
and never be released directly into the environment. You must
 alsouseaqualiedtechniciantorecoverrefrigerantgases.
(a) Collect the refrigerant using a refrigerant recovery unit
and recovery bottle. Use R134A refrigerant recovery
equipment, refrigerant recovery equipment for other
refrigerants may damage the equipment or the unit.
(b) When carrying out the refrigerant collection on site, unit
operation is prohibited, ensure the unit is turned off at
the fused switch.
(c) Connect a recovery machine to the suction line service
  valvehighlightedingure7.Ensuretofullyopenthe
respective suction line and liquid line service valves to
facilitate removal of refrigerant within the evaporator
during recovery.
(d) Actuate recovery equipment to begin recovery of
refrigerant gas within the system. Continue to recover
refrigerant upto 0 psi. At this point cease operation
of the recovery refrigerant, do not create a vacuum
within the unit as this may damage the equipment or unit.
(e) Please note where recovery machines withdraw liquid
refrigerant and not vapor , the quantity recovered may
not match what the system was charged with.
(f) Remove recovery equipment and dispose of recovered
refrigerant appropriately.