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Cooling Model
Heat Pump
DFS2A324K1A DFS2H324K1A
DFS2A330K1A DFS2H330K1A
DFS2A336K1A DFS2H336K1A
Installation, Start-Up, and Service Instructions
CONTENTS
SAFETY CONSIDERATIONS
GENERAL
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INSTALLATION
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Wiring Diagrams
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INDOOR UNITS
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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.
Page
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1−6
7−15
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12−13
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16−19
Safety Labeling and Signal Words
421 01 9218 00
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
install, start−up, and service this equipment.
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9
Untrained personnel can perform basic maintenance functions
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such as cleaning coils. All other operations should be performed
by trained service personnel.
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When working on the equipment, observe precautions in the
literature and on tags, stickers, and labels attached to the equipment.
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Follow all safety codes. Wear safety glasses and work gloves.
Keep quenching cloth and fire extinguisher nearby when brazing.
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Use care in handling, rigging, and setting bulky equipment.
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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.
51302618914−D Nov 06
DFS2A/H 24, 30, 36
Duct Free Systems
WARNING
WARNING
CAUTION
GENERAL
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Table of Contents
Related Manuals for International comfort products DFS2A324K1A
Summary of Contents for International comfort products DFS2A324K1A
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Page 1: Table Of Contents
Cooling Model Heat Pump 421 01 9218 00 51302618914−D Nov 06 DFS2A324K1A DFS2H324K1A DFS2A330K1A DFS2H330K1A DFS2A/H 24, 30, 36 R−22 DFS2A336K1A DFS2H336K1A 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 IMPORTANT: Each refrigerant line must be insulated Separately. See line sizing requirements in Table 2. TOP (min.) Consult local building codes and National Electrical Code 2" (0.6m) LEFT (min.) (NEC, U.S.A.) for special installation requirements. 6" (0.15m) Control wiring should be 18 Gage. REAR (min.) Use only type ”G”...
- Page 3 Table 1—Parts List — High Wall Units ITEM DIAGRAM Mounting Bracket DFF2A/DFF2H 09, 12 DFF2A/DFF2H 18 Long Screws 1/2 in. Cap Screws 2 colored, 2 nickel plated (sizes 030, 036 units only) Outdoor Sensor Connecting Cable (Available for HEAT PUMP ONLY) Absorption Cushions Electric Terminals 1 Mounting Bracket...
- Page 4 Table 2—Physical Data − Cooling Only Indoor Unit DFF2AH24K1A DFF2AH30K1A DFF2AH36K1A Btu/h 22,800 29,000 33,000 Cooling Capacity (Watt) 6,682 8,499 9,672 Efficiency Cooling SEER SEER System Charge Lb/Kg 4.2/1.9 6.06/2.75 5.9/2.67 MOISTURE REMOVAL pt/hr 780 / 680 / 580 920 / 800 / 680 920 / 800 / 680 Air Flow (Turbo/High/Low) 1325 / 1155 / 985...
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Page 7: Indoor Unit Installation
Fig. 3 — Refrigerant Lines 3.54 35.40 14.92 7.71 Fig. 2 — Indoor Unit Clearances 2.08 INSTALLATION Plan the installation carefully to avoid component failures and 2.08 make installation easier. 13.78 6.10 Indoor Unit Installation ALL DIMENSIONS ARE IN inches REFRIGERANT LINE ROUTING —... - Page 8 WIRE THE INDOOR UNIT REASSEMBLE 1. Strip the cables back 1/4 inch. 1. Connect the display connector to the display panel printed circuit board. 2. Remove the unit’s front panel by lifting the lower part and pulling it gently outward and upward. See Fig. 6. 2.
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Page 9: Outdoor Unit Installation
CONNECT REFRIGERANT LINES — Outdoor Unit Installation NOTE: The outdoor unit must be installed on a solid surface For models 30, 36 − Open the cover on the bottom of the unit as shown in Fig. 10. (mounting base). This service opening enables the connection of the refrigerant pipes. 1. -
Page 10: Power Supply
Operation push button for automatic operation (23°C/73°F), turning the a/c OFF, canceling the malfunction indication, and resetting the filter LED. SERVICE LED POWER/AIRCOND. TIMER IR RECEIVER FILTER PLASTIC COVER Fig. 12A — Indoor unit LED’s and Wiring FLARING AND CONNECTING REFRIGERANT LINES 2. - Page 11 Table 4—Electrical Data, Indoor Units — 208/230−1−60 FULL COMPRESSOR COMPRESSOR UNIT VOLTAGE MCA* MOCP* LOAD MOTOR LOCKED ROTOR AMPS AMPS AMPS AMPS 24K1 208−230VAC 0.46 0.37 DFF2AH 30K1 208−230VAC 0.55 DFF2HH 0.46 36K1 208−230VAC 0.55 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...
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Page 14: Start−Up
START−UP Indoor Units System Checks WARNING 1. Conceal the tubing where possible. 2. Make sure that the drainage tube slopes downward along ELECTRICAL SHOCK HAZARD its entire length. Failure to follow this warning could result in personal injury 3. Ensure all tubing and connections are properly insulated. or death. -
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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