Day and Night WCH3**4 Kurulum Talimatları Kılavuzu - Sayfa 6
Isı Pompası Day and Night WCH3**4 için çevrimiçi göz atın veya pdf Kurulum Talimatları Kılavuzu indirin. Day and Night WCH3**4 18 sayfaları. R?410a split system heat pump
INSTALLATION INSTRUCTIONS
Figure 4
OUTDOOR WALL
CAULK
INSULATION
THROUGH THE WALL
CAUTION
!
UNIT OPERATION HAZARD
Failure to follow this caution may result in improp-
er product operation.
Do not bury more than 36" (1m) of line set under-
ground. Refrigerant may migrate to cooler buried
section during extended periods of unit shut−
down, causing refrigerant slugging and possible
compressor damage at start−up.
If ANY section of the line set is buried under-
ground, provide a minimum 6" (152mm) vertical
rise at the service valve.
D. OUTDOOR UNIT HIGHER THAN INDOOR UNIT
Proper oil return to the compressor should be maintained
with suction gas velocity. If velocities drop below 1500
fpm (feet per minute), oil return will be decreased. To
maintain suction gas velocity, do not upsize vertical
suction risers.
E. LIQUID LINE FILTER−DRIER
NOTE: It is recommended that an appropriate filter−drier
be installed in the liquid line.
Leave the plugs in the tube ends until the filter−drier is
installed. The optimal location for the filter−drier is close
to the indoor coil. Heat pump filter−driers are "bi−flow"
type. Either end can be pointed towards indoor coil. Refer
to Figure 5.
6
Routing and Suspending Refrigerant Lines
INDOOR WALL
LIQUID TUBE
SUCTION TUBE
R−410A Split System Heat Pump
HANGER STRAP
(AROUND SUCTION
TUBE ONLY)
1" (25mm) MIN
SUSPENSION
Liquid Line Filter−Drier
Figure 5
Installed at Indoor Coil
Filter−Drier
F. SERVICE VALVES
Service valves are closed and plugged from the factory.
Outdoor units are shipped with a refrigerant charge
sealed in the unit. Leave the service valves closed until all
other refrigerant system work is complete or the charge
will be lost. Leave the plugs in place until line set tubing is
ready to be inserted.
Heat pumps require a piston metering device in the liquid
service valve for proper heating operation. Piston is
shipped in the piston body of the liquid service valve,
temporarily held in place with a plastic cap. Do not remove
the plastic cap until line set tubing is ready to be installed.
Refer to Figure 6 and follow these steps for piston
installation:
JOIST
INSULATION
SUCTION TUBE
LIQUID TUBE
38−11−84
428 01 5302 00