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Table 5 -- System Piston Guide and
Refrigerant Charges
UNIT INDOOR
PISTON
Indoor Outdoor SIZE
40QNB009 38AN009 Capillary Tube
40QNB012 38AN012 Capillary Tube
40QNEO09 38BK009 321"
40QNH012 38BK012 421"
OUTDOOR
PISTON
SIZE
Capillary Tube
Capillary Tube
30t
42"_
REQUIRED
SYSTEM
CHARGE
(Ib)*
1.50
180
150
2.00
*Charge is based on25 f_of interconnectingtubing.Charge may need
to be added for longer tubing runs or when used with certain fan
coils. Check unit nameplate for required charge. This is a total sys-
tem charge.
tNon-serviceable Aeroquip piston.
POSSIBLE PIPING DIRECTIONS
RIGHT
SIDE
BoTroM KNOCKOUT
LEFT
SIDE
KNOCKOUT
PREPUNGHED HOLES
FOR LEFT
SIDE PIPING
FOR RIGHT
SIDE PIPING
FOR
BOTi-OM/REAR
PIPING
Fig. 5 -- Fan Coil Unit Refrigerant Piping
35" MAX (FOR COOLING ONLY AND
HEAT PUMP SYSTEMS)
"_1_ UNIT
30"
MAX
INDOOR ELEVATION INDOOR
UNIT IT
/t/Hi--till/I/I////// // H//////H
OUTDOOR
UNIT
GROUND-LEVEL ROOFTOP
INSTALLATION INSTALLATION
Fig, 6 -- Maximum System Line Lengths
Step 4 -- Mount Outdoor Section
1. If outdoor section is to be installed at ground level, mount
on a solid, level support pad one in. longer and one in.
wider than the outdoor section dimensions.
2.
Provide sufficient clearance for airflow, wiring, refriger-
ant piping, service and maintenance. Provide a minimum
clearance of 2 ft from obstructions in front of outdoor
section, 2 ft on outdoor coil side, and 2_A ft on electrical
and piping side. If more than one outdoor section is in-
stalled, provide aminimum clearance of 2 ft between sec-
tions. Position outdoor section so that water or ice from
roof cannot fall directly on unit.
NOTE: The outdoor section can be installed higher than,
lower than, or level with the elevation of the indoor
section. If outdoor section is mounted higher than the in-
door section, the vertical distance between the 2 units
should not exceed 30 i_. If the outdoor section is installed
lower than indoor section, the vertical distance between
the units should not exceed 16 ft. See table below:
MAXIMUM DISTANCE BETWEEN OUTDOOR UNITS
Outdoor Section Higher 30 Ft Maximum
Than Indoor Section (Vertical)
Outdoor Section Lower 16 Ft Maximum
Than Indoor Section (Vertical)
NOTE: Maximum system piping length between indoorand outdoor
units is 35 ft.
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FAN COIL
UNIT BOTI OM
BACK VIEW
\
TOP HOLES
FRONT VIEW
Fig. 7 -- Fan Coil Unit Bracket Mounting (Size 009 Shown)
/