ICP DFS2A309J1A Installation, Start-Up And Service Instructions Manual

421 01 9217 00
Cooling Model Heat Pump
DFS2A309J1A DFS2H309J1A
DFS2A312J1A DFS2H312J1A
DFS2A318K1A DFS2H318K1A
Installation, Start-Up and Service Instructions
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . .1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Indoor Unit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Outdoor Unit Installation . . .
Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Leak Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
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
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-15

SAFETY CONSIDERATIONS

Installing, starting up, and servicing air-conditioning equip-
ment can be hazardous due to system pressures, electrical
components, and equipment location (roofs, elevated struc-
tures, 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
performed by trained service personnel.
When working on the equipment, observe precautions in
the literature and on tags, stickers, and labels attached to the
equipment.
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.
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 servicing
of outdoor and DFF2A/DFF2H indoor units
DFC2A/DFC2H
cooling 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 unit & the inter units cable voltage
is 30 VDC
IMPORTANT: Each refrigerant line must be insulated
separately. See line sizing requirements in table 2.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without inc
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• 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
For #16 AWG
For #14 AWG
• Use only type “G” or “C” fuses.
• Use single length power cable without extension.
• Allow sufficient space for airflow clearance on condens-
ing 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
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.
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 recommended 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 compressor at
start-up.
LEFT (min.)
6” (0.15m)
FRONT (min.)
2’ (0.6m)
Fig. 1A — Outdoor Unit Clearances
Fig. 1B — Outdoor Unit Clearances
Pg 1
51302618915 0106
DFS2A/H 09,12,18
Duct Free Systems
24.3 Feet (7.4 m)
37.7 Feet (11.5 m)
50.0 Feet (18 m)
TOP (min.)
2’ (0.6m)
REAR (min.)
6” (0.15m)
RIGHT (min.)
2’ (0.6m)
TOP(min.)
LEFT(min.)
2’ (0.6m)
6” (0.15m)
REAR(min.)
6” (0.15m)
FRONT(min.)
2’ (0.6m)
RIGHT(min.)
2’ (0.6m)