Carrier 38AN,BK System Piston Guide and, Refrigerant Charges, Fan Coil Unit Refrigerant Piping

Table 5 --System Piston Guide and

Refrigerant Charges

UNIT		INDOOR	OUTDOOR	REQUIRED
				SYSTEM
		PISTON	PISTON
				CHARGE
Indoor	Outdoor	SIZE	SIZE
				(Ib)*
40QNB009	38AN009	Capillary Tube	Capillary Tube	1.50
40QNB012	38AN012	Capillary Tube	Capillary Tube	180
40QNEO09	38BK009	321"	30t	150
40QNH012	38BK012	421"	42"_	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

LEFT

SIDE

KNOCKOUT

BoTroM KNOCKOUT

PREPUNGHED HOLES

FOR LEFT

SIDE PIPING

FOR RIGHT

SIDE PIPING FOR

BOTi-OM/REAR

PIPING

Fig. 5 -- Fan Coil Unit Refrigerant Piping

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FAN COIL

UNIT BOTI OM

BACK VIEW

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	ROOFTOP
GROUND-LEVEL
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 a minimum 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 indoor and outdoor units is 35 ft.

TOP HOLES /

FRONT VIEW

Fig. 7 --Fan Coil Unit Bracket Mounting (Size 009 Shown)