ICP DAS USA DFS2H324J2A, DFS2A318J2A specifications Contents, Safety Considerations, General

Cooling Model	Heat Pump		51302618919-A0606
DFS2A318J2A	DFS2H318J2A	R-22	DFS2A/H 2 X 09, 2 X 12
DFS2A324J2A	DFS2H324J2A
			Duct Free Systems

Installation, Start-Up and Service Instructions

CONTENTS	Page
SAFETY CONSIDERATIONS	1
GENERAL	1-4
INSTALLATION	4-11
Indoor Unit Installation	4
Outdoor Unit Installation	6
Power Supply	7
Leak Test	7
Wiring Diagrams	9-10
START-UP	11
System Checks	11
CARE AND MAINTENANCE	11
Outdoor Units	11
Indoor Units	11
To Clean the Indoor Unit Front Panel	11
To Clean Indoor Coil	11
Air Filters for Indoor Units	11
SERVICE	11
TROUBLESHOOTING	12-15

SAFETY CONSIDERATIONS

Installing, starting up, and servicing air-conditioning equip- ment can be hazardous due to system pressures, electrical compo- nents, and equipment location (roofs, elevated structures, etc.).

Only trained, qualified installers and service mechanics should install, start-up, and service this equipment.

Untrained personnel can perform basic maintenance func- tions such as cleaning coils. All other operations should be per- formed by trained service personnel.

When working on the equipment, observe precautions in the literature and on tags, stickers, and labels attached to the equip- ment.

Follow all safety codes. Wear safety glasses and work gloves. Keep quenching cloth and fire extinguisher nearby when brazing. Use care in handling, rigging, and setting bulky equipment.

WARNING

Before installing or servicing system, always turn off main power to system and install lockout tag on disconnect. There may be more than one disconnect switch. Electrical shock can cause personal injury.

GENERAL

These instructions cover the installation, start-up and servic- ing of DFC2A/DFC2H outdoor and DFF2A/DFF2H indoor units cool- ing only and heat pump duct free systems. See Table 1 for parts included. See Tables 2 and 3 for Physical Data.

System Requirements

IMPORTANT: The Indoor units & the inter units cable voltage is 30 VDC.

IMPORTANT: Each refrigerant line must be insulated Separately. See line sizing requirements in tabel 2.

•	Consult local building codes and National Electrical Code
	(NEC, U.S.A.) for special installation requirements.
	Max. cable length. Total voltage drop should not exceed 1V.
	Therefore max. length:
		For #18 AWG	24.3 Feet (7.4 m)
		For #16 AWG	37.7 Feet (11.5 m)
		For #14 AWG	50.0 Feet (18 m)
•	Use only type "G" or "C" fuses. Use single length power
	cable without extension. Allow sufficient space for airflow
	clearance on condensing units for wiring, refrigerant piping,
	and servicing unit. See Fig. 1 and 2 for minimum required
	distances between unit and walls or ceilings.
•	Indoor and outdoor units should be installed at a
	Minimum length of 10 ft. apart.
	Maximum line length of 50 ft. and
	vertical separation of 30 ft.
•	Do not install indoor units near a direct source of heat such as
	direct sunlight, steam or flame.

CAUTION

Do not bury more than 36 in. of refrigerant pipe in the ground. If any section of pipe is buried, there must be a 6 in. vertical rise to the valve connections on the outdoor units. If more than the rec- ommended length is buried, refrigerant may migrate to the cooler buried section during extended periods of system shutdown. This causes refriger-ant slugging and could possibly damage the com- pressor at start-up.

TOP (min.) 2" (0.6m)

LEFT (min.) 6" (0.15m)

FRONT (min.) 2" (0.6m)

REAR (min.) 6" (0.15m)

RIGHT(min.)

2" (0.6m)

Fig. 1 — 38BCC/BCQ 018, 024 Outdoor Unit Clearances

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without inc. Printed in Israel

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