International comfort products DFS2A318J2A Installation, Start-Up And Service Instructions Manual
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International comfort products DFS2A318J2A Installation, Start-Up And Service Instructions Manual

International comfort products DFS2A318J2A Installation, Start-Up And Service Instructions Manual

Dfs2a/h 2x09, 2x12 duct free systems
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Cooling Model
DFS2A318J2A
DFS2A324J2A
Installation, Start-Up, and Service Instructions
CONTENTS
SAFETY CONSIDERATIONS
GENERAL
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Wiring Diagrams
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DANGER, WARNING, CAUTION, and
NOTE
The signal words DANGER, WARNING, CAUTION, and
NOTE are used to identify levels of hazard serious-
ness. The signal word DANGER is only used on
product labels to signify an immediate hazard. The
signal words WARNING, CAUTION, and NOTE will
be used on product labels and throughout this manu-
al and other manuals that may apply to the product.
DANGER − Immediate hazards which will result in se-
vere personal injury or death.
WARNING − Hazards or unsafe practices which could
result in severe personal injury or death.
CAUTION − Hazards or unsafe practices which may re-
sult in minor personal injury or product or property
damage.
NOTE − Used to highlight suggestions which will result in
enhanced installation, reliability, or operation.
WARNING
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
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.
Heat Pump
DFS2H318J2A
DFS2H324J2A
Page
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1−7
7−14
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12−13
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16−19

Safety Labeling and Signal Words

421 01 9219 00
DFS2A/H 2X09, 2X12
R−22
SAFETY CONSIDERATIONS
Installing, starting up, and servicing air−conditioning equipment
1
can be hazardous due to system pressures, electrical components,
and equipment location (roofs, elevated structures, etc.).
Only trained, qualified installers and service mechanics should
7
install, start−up, and service this equipment.
9
10
Untrained personnel can perform basic maintenance functions
such as cleaning coils. All other operations should be performed
10
by trained service personnel.
14
When working on the equipment, observe precautions in the
14
literature and on tags, stickers, and labels attached to the equipment.
14
Follow all safety codes. Wear safety glasses and work gloves.
14
Keep quenching cloth and fire extinguisher nearby when brazing.
14
Use care in handling, rigging, and setting bulky equipment.
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14
14
15
Signal Words in Manuals
The signal word WARNING is used throughout this
manual in the following manner:
!
The signal word CAUTION is used throughout this
manual in the following manner:
!
Signal Words on Product Labeling
Signal words are used in combination with colors and/or
pictures on product labels.
These instructions cover the installation, start−up and servicing of
DFC2A/DFC2H outdoor and DFF2A/DFF2H indoor units
cooling only and heat pump duct free systems. See Table 1 for
parts included. See Tables 2 and 3 for Physical Data.
51302618919−B NOV 06
Duct Free Systems
WARNING
WARNING
CAUTION
GENERAL

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Summary of Contents for International comfort products DFS2A318J2A

  • Page 1: Table Of Contents

    Cooling Model Heat Pump 421 01 9219 00 51302618919−B NOV 06 DFS2A318J2A DFS2H318J2A DFS2A324J2A DFS2H324J2A DFS2A/H 2X09, 2X12 R−22 Duct Free Systems Installation, Start-Up, and Service Instructions CONTENTS SAFETY CONSIDERATIONS Page Installing, starting up, and servicing air−conditioning equipment SAFETY CONSIDERATIONS .
  • Page 2 SYSTEM REQUIREMENTS CAUTION IMPORTANT: The Indoor units & the inter units cable voltage is 30 VDC. UNIT COMPONENT DAMAGE Failure to follow this caution may result in damage to unit IMPORTANT: Each refrigerant line must be insulated components. Separately. See line sizing requirements in able 2. Do not bury more than 36 in.
  • Page 3 Table 1—Parts List — High Wall Units ITEM DIAGRAM 2 X 1 Mounting Bracket DFF2A/DFF2H 09, 12 2 X 8 Long Screws Outdoor Sensor 2 X 1 Connecting Cable (Available for HEAT PUMP ONLY) Absorption Cushions Electric Terminals 2 X 8 Remote Controller 1 Mounting Mounting Bracket...
  • Page 4 Table 2—Physical Data − Cooling Only INDOOR UNIT 2 X DFF2AH09J1A 2 X DFF2AH12J1A COOLING CAPACITY (Btuh) SEER 2 X 9,000 2 X 11,400 13.0 13.0 SYSTEM CHARGE (Ib)* 2 X 2.4 2 X 3.1 MOISTURE REMOVAL (pt/hr) 2 X 2.6 2 X 4.5 AIRFLOW (3 Speeds) 2 X 350 / 2 X 280 / 2 X 220...

  • Page 7: Installation

    4. If refrigerant line route no. 1,2 or 4 are used, use a small saw blade to carefully remove the corresponding plastic covering on the side panel. 5. Run the outdoor sensor cable, electrical cable, refrigerant lines, and drainage tube through the hole. 6.
  • Page 8 WIRE THE INDOOR UNIT 1. Strip the cables back 1/4 inch. 2. Remove the unit’s front panel by lifting the lower part and pulling it gently outward and upward. See Fig. 6. 3. Remove the two screws from the control box cover and take off the cover.

  • Page 9: Outdoor Unit Installation

    ATTACH THE REMOTE CONTROLLER MOUNTING Use only ”L” type sealed, dehydrated copper refrigerant tubing. No other type of tubing may be used. Use of other types of tubing BRACKET will void the manufacturer’s warranty. 1. Use the two screws supplied with the controller to attach the mounting bracket to the wall in the location selected Do not open service valves or remove protective caps from by the customer (see Fig.

  • Page 10: Power Supply

    2 X 09, 2 X 12 INDOOR UNIT Operation push button for automatic operation (23°C/73°F), turning the a/c OFF, canceling the malfunction indication, and resetting the filter LED. OFF ON TIMER SERVICE LED PLASTIC CONTROL COVER FILTER IR RECEIVER Fig. 12A — Indoor unit LED’s and Wiring FLARING AND CONNECTING REFRIGERANT LINES 3.
  • Page 11 Table 4—Electrical Data, Indoor Units — 30VDC UNIT VOLTAGE MCA* MOCP* FULL FAN MO- COM- COMPRESSOR LOAD PRESSOR LOCKED ROTOR AMPS AMPS AMPS AMPS DFF2AH 09J1A 30VDC DFF2HH 12J1A 30VDC LEGEND - Minimum Circuit Amps MOCP - Maximum Overcurrent Protection * If indoor unit is powered from outdoor terminal block, the MOCP for the outdoor unit is for both sections NOTE: Specifications and performance data are subject to change with-...

  • Page 14: Start−Up

    START−UP dirt and debris from drain holes in base of unit. Fan mo- tors are waterproof. System Checks Indoor Units 1. Conceal the tubing where possible. WARNING 2. Make sure that the drainage tube slopes downward along its entire length. 3.

  • Page 15: Service

    down or is torn, replace it. Replacement filters are available Clean or Replace Drain Pan — The drain pan should only be through a local dealer. cleaned or replaced by a qualified service technician. SERVICE 1. Place a plastic sheet on the floor to catch any water that may spill from the drain pan.

  • Page 16: Troubleshooting

    TROUBLESHOOTING (Tables 6−8, and Fig. 15) WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death. Be sure to check for broken wires or loose cable lugs before troubleshooting system. Table 6—Service Indicators LAMP STATUS INDICATION CORRECTION ACTION Check the TH1 thermistor for correct resistance.
  • Page 17 Table 7—DFS2A/DFS2H Thermistor TH−1, TH−2, and TH−3 Temperature to Resistance Conversion TEMPERATURE TEMPERATURE TEMPERATURE TEMPERATURE MINIMUM MEAN MAXIMUM ( F) ( C) TOLERANCE TOLERANCE RESISTANCE RESISTANCE RESISTANCE ( F) ( C) (KW) (KW) (KW) −4.0 −20 30.89 32.44 34.05 ± ±...
  • Page 18 Table 7 —DFS2A/DFS2H Thermistor TH−1, TH−2, and TH−3 Temperature to Resistance Conversion (Cont.) TEMPERATURE TEMPERATURE TEMPERATURE TEMPERATURE MINIMUM MEAN MAXIMUM ( F) ( C) TOLERANCE TOLERANCE RESISTANCE RESISTANCE RESISTANCE ( F) ( C) (KW) (KW) (KW) 3.391 3.508 3.626 95.0 ±...
  • Page 19 If at starting time outdoor temperature is equal or lower than −10_C (14_F) the unit will not start and the filter led will flash five (5) times to indicate that low temperature protection is activated. International Comfort Products, LLC Lewisburg, Tennessee 37091...

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Dfs2a/h 2x09Dfs2h318j2aDfs2a/h 2x12Dfs2a324j2aDfs2h324j2a

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