ICP Air Conditioner/heat Pump(outside Unit) Manual L0803419

User Manual: ICP ICP Air conditioner/heat pump(outside unit) Manual ICP Air conditioner/heat pump(outside unit) Owner's Manual, ICP Air conditioner/heat pump(outside unit) installation guides

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Cooling Model
DFS2A318J2A
DFS2A324J2A

Heat Pump
DFS2H318J2A
DFS2H324J2A

51302618919-B

421 01 9219 00 I

NOV 06

DFS2A/H 2X09, 2X12
Duct Free Systems

Installation, Start-Up, and Service Instructions
CONTENTS

SAFETY

......................

Page
1

GENERAL .....................................
INSTALLATION
..............................
Indoor Unit Installation
........................
Outdoor Unit Installation
........................

1-7
7-14
7
9

SAFETY CONSIDERATIONS

Power Supply ................................
Leak Test .....................................

10
10

Wiring Diagrams ...........................
START-UP ....................................

12-13
14

System Checks ................................
CARE AND MAINTENANCE .......................
Outdoor Units .................................
Indoor Units ...................................
To Clean the Indoor Unit Front Panel ............
To Clean Indoor Coil ...........................
Air Filters for Indoor Units ......................
SERVICE .......................................
TROUBLESHOOTING
........................

14
14
14
14
14
14
14
15
16-19

Installing,

starting

can be hazardous
and equipment

CONSIDERATIONS

up, and servicing
due to system

location

air-conditioning

pressures,

(roofs, elevated

structures,

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

personnel

can

perform

basic

working

on the equipment,

components,
etc.).

mechanics

maintenance

such as cleaning coils. All other operations
by trained service personnel.
When

equipment

electrical

should

observe

should

functions

be performed

precautions

in the

literature mid on tags, stickers, mid 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.

Safety Labeling and Signal Words
DANGER,
NOTE

WARNING,

CAUTION,

and
Signal

The signal words DANGER, WARNING, CAUTION, and
NOTE are used to identify levels of hazard seriousness. 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 manual and other manuals that may apply to the product.

Words

in Manuals

The signal word WARNING is used throughout
manual in the following manner:

this

The signal word CAUTION is used throughout this
manual in the following manner:

DANGER - immediate hazards which will result in severe 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 result in minor personal injury or product or property
damage.

Signal

Words

on Product

Labeling

Signal words are used in combination with colors and/or
pictures on product labels.

NOTE - Used to highlight suggestions which will result in
enhanced installation, reliability, or operation.

GENERAL
ELECTRICAL

SHOCK

Failure to follow
injury or death.

this

These instructions
DFC2A/DFC2H

HAZARD
warning

could

result

in personal

Before installing or servicing system, always turn off main
power to system
and install lockout
tag on disconnect.
There mav be more than one disconnect switch.

cover the installation,
start-up
outdoor
and DFF2A/DFF2H

and servicing of
indoor
units

cooling only and heat pump duct free systems. See Table
parts included. See Tables 2 and 3 for Physical Data.

1 for

SYSTEM
IMPORTANT:
is 30 VDC.

The Indoor

•

units

& the inter units

Each

refrigerant

line

See line sizing requirements

Consult

cable voltage
UNTF COMPONENT

IMPORTANT:
Separately.

REQUIREMENTS

local building

must

insulated

in able 2.

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 (18 111)

Failure to follow
components.

DAMAGE

this caution

may result in damage

to unit

Do not bu_ 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
the cooler buried
shutdown.

length is buried, refrigerant may migrate to
section duNlg extended periods of system

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

•

Indoor
mum

between

length

and veltical
•

unit and walls or ceilings.

and outdoor

units

should

be installed

of 10 ft. apart. Maximum
separation

of 30 ft.

Do not install indoor units near a direct
as direct sunlight,

at a Mini-

line length of 50 ft.
source of heat such

steam or flame.

Fig, 1 -- DFC2A/H318, 324 Outdoor Unit Clearances

Table 1--Parts

ITEM

QTY

Mounting Bracket

List -- High Wall Units

DIAGRAM

2X1
DFF2A/DFF2H

Long Screws

Outdoor

09, 12

2X8

Sensor
2X1

Connecting
Cable

(Available for HEAT PUMP ONLY)

Absorption Cushions

Electric Terminals

2X8

2X
Remote

Controller

Mounting

Bracket

Remote Controller
and Batteries

Insulation
Indoor

Owner's

1 Mounting
Bracket with 2 screws

2X1

for

Fittings

Manual

Wall-mounted
Receiver RTX

2X1

(OPTIONAL)
(Not Included)
NADA001TW

Table 2--Physical
INDOOR

UNIT

COOLING

CHARGE

MOISTURE

(Btuh)

SEER

TUBE

32 3/32x10

UNIT

NOMINAL

Drop/Max

Length

DIMENSIONS

32 3/32x10

15/64x7
R-22

2 X 19.0

9/32

DFC2A324J2A

30/30/50

1/4...1/2

(in.)

TYPE

Panasonic-2R13S126A6F

TYPE

Panasonic-2P17SR126B1A

35.5 X 49.5 X 12.6

226

228

(Ib)

METERING

9/32

(ft)

LxHxW(in.)

NET WEIGHT

15/64x7
R-22

LINE SIZING

Phase...Suction

COMPRESSOR

2 X 4.5
2 X 350 / 2 X 280 / 2 X 220

DFC2A318J2A

CONNECTIONS

Vert Lift/Vert

Mixed

(in.)

TYPE
(Ib)

OUTDOOR

2 X 3.1

2X2.6
2X350/2X280/2X220

LxHxW

NET WEIGHT

2 X 11,400
13.0

2X2.4

(Ib)*

REMOVAL (pt/hr)

REFRIGERANT

2 X DFF2AH12JIA

2 X 9,000
13.0

AIRFLOW
(3 Speeds)
High / Med. / Low Cfm
DIMENSIONS

Only

2 X DFF2AH09JIA

CAPACITY

SYSTEM

Data - Cooling

Piston

(Accurator)

LEGEND

Piston

Accurator

(Accurator)

is non-serviceable

SEER -- Seasonal Energy Efficiency Ratio
*Units are shipped with a factory charge based on 25 ft of refrigerant lines.
Table
INDOOR

3_Physical

UNIT

Data - Heat Pump
2 X DFF2AH09JIA

2 X DFF2AH12JIA

COOLING
SEER

CAPACITY

(Btuh)

2 X 9,000
13.0

2 X 11,400
13.0

HEATING
HSPF

CAPACITY

(Btuh)

17,200
7.7

23,600
7.7

SYSTEM

CHARGE

2 X 2.4

2 X 3.1

2 X 2.6

2 X 4.5

MOISTURE

(Ib)*

REMOVAL (pt/hr)

AIRFLOW
(3 Speeds)
High / Med. / Low Cfm
DIMENSIONS

LxHxW

REFRIGERANT
NET WEIGHT

OUTDOOR
TUBE

2 X 350/2

(in.)

32 3/32x10

TYPE
(Ib)

UNIT

NOMINAL
Mixed

Drop/Max

DIMENSIONS

Length

9/32

WEIGHT

METERING

TYPE

X 220

15/64x7
R-22

2 X 19.0

9/32

DFC2A324J2A

30/30/50

1/4...1/2

(in.)
Panasonic-2R13S126A6F

LxHxW(in.)

SHIPPING

32 3/32x10

X 280/2

(ft)

TYPE

35.5 X 49.5 X 12.6

226

228

Piston

(Accurator)
Accurator

Seasonal

Performance

Panasonic-2P17SR126B1A

35.5 X 49.5 X 12.6

(Ib)

LEGEND

HPSF -- Heating

15/64x7

2 X 350/2

R-22

LINE SIZING
Phase...Suction

COMPRESSOR

X 220

DFC2A318J2A

CONNECTIONS

Vert Lift/Vert

X 280/2

Piston
is non-serviceable

Factor

SEER -- Seasonal Energy Efficiency Ratio
*Units are shipped with a factory charge based on 25 ft of refrigerant lines,
NOTE: Standard Ambient Operating Limitations - 55 [_F to 125 0F (12.7 [_C to 51.6 [_C).

(Accurator)

ICP
- 3.94

o
o

[I00] MIN.

rm
[I00]

NOTES:
I. DIMENSIONS IN
2,

MINIMUM
INCHES, [ ]

CLEARANCE

FOR

11.81

[300]

SERVICE

AND

MIN.
AIR

z
0

FLOW

[TOP VIEW]

ARE IN MILLIMETERS - DO NOT SCALE.

DIRECTION OF AIR FLOW.

MIN.

3.0 DIA [76]
A
FOR REFRIGERANT, DRAIN,
POWERAND SIGNAL LINES

3, REFRIGERANT, DRAIN AND POWERCONNECTIONS
MAY BE MADE REAR (LEFT OR RIGHT),
LEFT SIDE, RIGHT SIDE, OR BOTTOM LEFT.

I
INLET

[

AIR

F]LTERS
(OPEN COVER FOR ACCESS)

LEFTSIDEVIEW

I RIGHT SIDE VIEW J

IFRONT VIEWI

-EVAPORATOR
COIL

INLET AIR

KNOCKOUT FOR RIGHT SIDE
REFRIGERANT, DRAIN, POWER
SIGNAL LINES

lAND

COOLING

IIIIAIRS_II

"A"

BEAF_NG
%

LINFRARE[

REMOTE OVERRIDE SWITCH

DRAIN 0.625 [15.B] - 2B'FLEX BOSE,
MALE BARB CONNECTION (PLASTIC)

NOCKOUT FOR LEFT SIDE
REFRIGERANT, DRAIN, POWER
AND SIGNAL LINES
f

SUCTION LINE CONNECTION
"G" MALE FLARE

I_L_
I'

J rJ

L_OU_O
UNE
CONNECTION 1
"H" MALE FLARE

,/
[BOTTOM VIEW]

KNOCKOUT FOR BOTTOM
REFRIGERANT,DRAIN,POWER
AND SIGNAL LINES

ICP
I
UNIT SIZE
DFC2A318J2AI

4_n

DFC2A324J2AI
49_36

Ji
43

I 4.3

_EJ
_>
o-I
_m
o
o_

ln_ t _gR 796177F

t69

DFC2H324J2A

I 28.6

Z261 7.7_
"

,97
1

641

,410, 612261 0
m

NOTES:
1 REQUIRED
CLEARANCES,
WITH COIL FACING WALL - ALLOW 6 MINIMUM
1 1 WITH COIL FACING WALL - ALLOW 6 MINIMUM
CLEARANCE
ON COiL SIDE & END
AND 2 FEET MINIMUM
CLEARANCE
ON COMPRESSOR
END FAN SIDE
1 2 WITH FAN FACING WALL - ALLOW 2 MINIMUM
CLEARANCE
ON FAN SIDE AND
6 ON COIL END,
AND 2 FEET MINIMUM
CLEARANCE
ON COMPRESSOR
END COiL SIDE
1 3 ALLOW 2 FEET MINIMUM
CLEARANCE
OVER THE TOP OF UNIT
1 4 WITH MULTI-UNITAPPUCATtON,
ARRANGE
UNITS
SO DISCHARGE
OF ONE DOES NOT ENTER INLET
OTHER
2 DIMENSIONS
iN PARENTHESIS
ARE IN METRIC
3 BRACKET
WITH 1 125 DiA HOLE FOR FIELD POWER SUPPLY

mcm

Zoo
mc

oi ,;

co
m
o
m
co

'
FIELD

POWER

CONNECTION

i
UNDER

AIR DISCHARGE
Mim
6" [0,15M]

THIS COVER

Min.
2' [0.6M]
CONTROL

TOP VIEW

"P'

-- SEE NOTE 3

CONNECTION

DIA.

VAPOR

LINE

MINIMUM
CLEARANCE_
SEE NOTE 1
,,g _,

.25" FLARE
CONNECTION
FLARE
SERVICE
CONNECTION
PORT
SERVICE
PORT
(FROM LIQUID LINE)

.25"

FLARE

"R"

DIA.

LINE

_1_

° TYP
"K2"

CONNECTION_

LIQUID

_/_t_i

"-_

"J2 ....

FLARE

CONNECTION

DIA. VAPOR

FLARE

: ---1

LINE

CONNECTION

"A"
SERVICE
25'

PORT

FLARE

CONNECTION

"KI"

SERVICE
PORT
(FROM LIQUID LINE)
.25" FLARE CONNECTION

1
LM

MJ
FRONT

VIEW

"R" DIA. LIQUID LINE
FLARE CONNECTION

=TYP

0.7
[18MM] -VIEW

'_A'_
, rn
<

4. If refrigerant

line route no. 1,2 or 4 are used,

saw blade to carefully remove
covering on the side panel.
5. Run the outdoor

sensor

lines, and drainage
6. Fill the remaining
ant material.

cable,

use a small

the corresponding

electrical

tube through

cable,

plastic

refrigerant

the hole.

wall hole gap with an appropriate

seal-

J
J

Fig. 2 --

Indoor

Unit Clearances
Fig. 3 --

INSTALLATION
Plan the installation
carefully
make installation easier.

to avoid

component

failures

Refrigerant

Lines

and
09, 12

Indoor

Unit Installation

REFRIGERANT
LINE ROUTING
-- The refrigerant lines may
be routed in any of the four directions shown in Fig. 3.
INSTALL

THE

MOUNTING

BRACKET

1. Carefully
remove the mounting
bracket,
which is connected to the back of the indoor unit's base with screws.
2. Position

the mounting

ing a spirit

bracket

G-2

ALL DIMENSIONS

ARE IN inches

on the wall and level it us-

level (see Fig. 2 for minimum

required

clear-

09, 12

ance distances).
3. Mark the four drilling

holes

on the wall,

as they appear

Fig. 4.
4. Drill the holes,
screws to attach

insert the wall plugs and use four
the mounting bracket to the wall.

5. Check that the bracket
the wall.
DRILL

A HOLE

INTER-UNIT

IN THE

is leveled

WALL

FOR

and securely

long

fastened

DRAINAGE

G-2
Fig. 4 --

AND

ALL DIMENSIONS ARE iN mm
Mounting

Bracket

DFF2A/DFF2H

09, 12

CONNECTIONS

To make the connections

between

the indoor

and outdoor

units,

(Optiona_

drill a 2.5-in.
hole through
the wall for the refrigerant
lines,
drainage hose and control cable passage as shown in Fig. 5.

OUTDOOR

for NEAT
SENSOR

PBNP

BYSTEfB$}

CABLE

REFRIGERANT

LINES

1. Mark the center of the hole to be drilled according m the refiigerant line routblg used and dimensions shown in Fig. 4.
2. Make
opening
opening
3. Make
hole.

sure to drill

outwards

in the outside
on the inside.
sure the drainage

and downwards,

wall is at least

hose

so that the

1/2" lower

is at the bottom

than the

side of the

INDOOR _.tl]
- _

t/2.1N.

MIN

OUTDOOR
- -

_T_lrAI
ELECTRICAL
CABLE

Fig. 5 -- Drill Holes

DRAINAGE

TUBE

WIRE

THE

INDOOR

UNIT

1. Strip the cables back 1/4 inch.
2. Remove
pulling

the unit's
it gently

3. Remove

front panel by lifting the lower
outward

and upward.

the two screws

from

part and

See Fig. 6.

the control

box cover

and

take off the cover. See Fig. 7. Save the screws to reassemble.
NOTE:

In general

removal

of the grille frame but in case of need do as follow:

wiring

the indoor

unit

does

not require

4. Remove the two screws from the air discharge
Save the screws to reassemble.
See Fig. 7A.

Pull downwards
and outwards on the bottom of the grille
and gently raise the frame of the top of the unit.

•

Once all covers

are off, mount

•

Remove

Grille

Insert

the unit onto the wall mount-

See Fig. 8.

NOTE:
Leave
covers
Connections
section.
•

Fig. 6 --

the

opening.

•

ing bracket.

•

off

until

after

the

Making

Drainage

Fig. 7 -- Remove Control Cover

Route the interconnecting

unit's

door sensor cable towards
indoor unit.

the lower

electric

cable and the out-

right hand corner

Make sure that the wires are connected

in accordance

of the
with

the wiring diagram on the inside of the unit front cover or
within this instruction manual.
•

Secure the control

•

For heat pump

Fig. 7a -- Remove the screws from the air discharge
opening.

cables to the strain relief.

systems

only, connect

TH3 to its mating black terminal.

the outdoor

sensor

See Fig. 9.

Mount the indoor unit on the mounting bracket

FIRE HAZARD
Failure to follow this warning
could
injury, death and or property damage.
Make

sure that all wires and screws

result

in personal

are firmlv fastened.

REASSEMBLE
1. Connect the display
circuit board.
2. Put the control
the appropriate
Unit section).

connector

to the display

panel printed
_ili;

box cover
screws

and grille

(Steps

frame

back on using

3 and 4 of Wire the Indoor

Put the grille insert back on.

Gently

push

Fig. 8 --

with the arrow
Indoor

Unit

direction

Mounting

Standard
Dip Switches
status from the factory

Model-2

HEAT PUMP
X 12 DIP Switches

(on the control

location

box side)

HEAT PUMP
Model-2 X 09 DIP Switches
location
(on the control box side)

Inter unit
terminal
block
30VDC

Display
COOLING ONLY
Model-2 X 12 DIP Switches location
(on the control box side)

COOLING ONLY
Model-2 X 09 DIP Switches location
(on the control box side)

Fig. 9 -- Outdoor Sensor Connection

TH3
(Heat Pump

Only)

Inter unit cable

clamp

ATTACH

THE

REMOTE

CONTROLLER

MOUNTING

Use only "L" type sealed,

BRACKET
1. Use the two screws supplied with the controller to attach
the mounting bracket to the wall in the location selected
by the customer
2. Install batteries
3. Place remote
et.
4. For remote
Manual.

(see Fig. 10).
in the remote

control

dehydrated

copper

refrigerant

tubing.

No other type of tubing may be used. Use of other types
will void the manufacturer's
warranty.
Do not open service valves or remove
protective
tubing ends until all the connections
are made.

of tubing

caps

from

control.

into remote

operation,

control

refer

mounting

to the unit

brack-

Owner's

Bend tubing with special bending tools to avoid the formation of
sharp bends. Take care to avoid kinks or flattening of the tubing.
Keep

the

contaminants
Avoid

tubing

free

of dirt,

to avoid damaging

sags in the suction

sand,

moisture,

the refrigerant

line to prevent

and

other

system.

the formation

of oil

traps.
Insulate
insulation.

each tube
Inserting

with
3/8-in.
walled
thermal
the tubing
into the insulation

pipe
before

making
the connections
will save
time and improve
installation
The suction and mixed-phase
lines should never
come in direct contact.
REMOTE CONTROL
MOUNTING BRACKET
POWER

Fig. 10-

SUPPLY

Attach Mounting Bracket to the Wall

HIGH/LOW

(OPTIONAL)
NADA001TW
TH3
(HEAT

Fig. 11 --Wall
Outdoor

Mounted Unit-

SENSOR
PUMP

METAL

RTX

CONNECTION

Unit Installation

POWER

ONLY)

CONDUIT
PLATE

SUPPLY
CABLE

NOTE:

The

(mounting

outdoor

unit must

be installed

on a solid

surface

UNIT

CABLE

base).

1. Place the rubber absorption
cushions (supplied
with
outdoor unit) under the unit's feet to prevent vibrations.
2. Fasten the outdoor unit legs
shown in Fig. 12. The cushion
the mounting base.

the

to the mounting
base, as
goes between the legs and

3. Be sure that the unit is leveled.
MAKE

REFRIGERANT

DOOR

UNIT) -- To connect

PIPING

CONNECTIONS

the refrigerant

(OUT-

lines:

Make sure to properly identify and separate between the piping
and control cables coming from indoor unit No. 1 and the piping
and cables

INTER

coming

from indoor

unit No. 2

4 ABSORPTION
BE

PUT

UNDER

CUSHION
EACH

TO
LEG

Fig. 12 -- Legs Mounting Base and Wiring Outdoor
Units
Models: DFC2A/H318J2A, DFC2A/H324J2A

INDOOR UNIT 2 X 09, 2 X 12

Operation push button for
automatic operation (23°C/73°F),
turning the a/c OFF, canceling
the malfunction indication,
and resetting the filter LED.

AUTO/OFF
_=) FILTEJ

OFF

T[MEI_

SERVICE

LED

PLASTIC
CONTROL
COVER
IR RECEIVER

FILTER

Fig. 12A -- Indoor unit LED's and Wiring
FLARING

AND CONNECTING

REFRIGERANT

LINES

1. Remove

the protective

cap from the flare fitting.

2. Remove

the protective

cap from

the tubing

3. Disconnect
the vacuum
microns for 5 minutes.

3. Slip the flare nut on the tubing
standard

flaring

and

5. Open the mixed-phase
wrench.

and flare the tube end using

tools.

6. Open the suction
wrench.

4. Tighten the nut until resistance
is met. Mark the nut and
the fitting. Using a suitable wrench tighten an additional V4
turn. Use the following
nection size:
Mixed-Phase

line:

1/4 in.-(12.3

fit-lb.)

Both refrigerant
lated separately

NOTE:

Suction

The

according

7. To evacuate

to con-

TUBING

refrigerant

fit-lb.)

on the outdoor

are connected,

charge nmst be checked

1. Open the service

unit

must

valve (small

line valve

and charge

(large

500

valve

valve)

with an Allen

valve)

with

an Allen

unit No. 2 repeat steps 1 thru 6.

for each additional

3 ft. of tubing

R-22 re0.9 oz. of
length.

THE SYSTEM

air must be expelled,

then
the steps

port cap on the suction

port cap. Using

refrigerant

oil, lubri-

and adjusted.

the service

cate the cap beam and hand tighten until resistance is met.
Use a suitable wrench to tighten the cap by an additional
1/2 turn.

remain

have been made.

AND CHARGE

maintain

9. Make sure that the valves are properly opened. Be careful
not to open them more than required as this may damage
the thread.
10. Replace

valves

should

8. The outdoor
unit is supplied
with sufficient
frigerant for up to 25 ft. lineset length. Add

need to be insu-

service

When all the fittings
refrigerant
below.

torque,

line:

1/2 in.-(36

lines

closed until all 4 connections
EVACUATE

specified

Unit

4. Remove the service port caps from the mixed-phase
and suction line valve

and cut to the

required length. Be sure that the cut is perpendicular
clean, without burrs.

pump.

Power

Supply

13-14

for system wiring

Leak
Test
equipment.

line valve (large

valve of unit No. i).
2. Connect the vacuum pump to the service port of unit No.
1 via the pressure gage and evacuate
to 500 microns to
eliminate contamination
and moisture.

See Tables

Leak

4 and 5 for electrical

data and Fig.

diagrams.

test

all fittings

with

appropriate

test

Table 4_Electrical
UNIT

VOLTAGE

MCA*

Data, Indoor Units -- 30VDC

MOCP*

FULL
LOAD
AMPS

FAN MOTOR
AMPS

COMPRESSOR
AMPS

COMPRESSOR
LOCKED
ROTOR
AMPS

DFF2AH

09JIA

30VDC

N/A

1.8

1.1

N/A

DFF2HH

12JIA

30VDC

N/A

1.8

1.5

N/A

LEGEND
MCA
MOCP

Minimum Circuit Amps
Maximum Overcurrent Protection

* If indoor unit is powered from outdoor terminN block, the MOCP for the
outdoor unit is for both sections
NOTE: Specifications and performance data are subject to change without notice.

3095897
Table
UNIT

5_Electrical

VOLTAGE

MCA*

Data, Outdoor
MOCP*

Units --

FULL
LOAD
AMPS

115, 1-60
FAN MOTOR
AMPS

COMPRESSOR
AMPS

COMPRESSOR
LOCKED
ROTOR
AMPS

DFC2A

318J2A

II5VAC

19.8

1.00

7.2

DFC2H

324J2A

II5VAC

24.6

22.2

1.00

9.3

LEGEND
MCA
MOCP

Minimum Circuit Amps
Maximum Overcurrent Protection

• If indoor unit is powered from outdoor terminal block, the MOCP for the
outdoor unit is for both sections.
NOTE: Specifications
out notice.

and performance

data are subject to change with-

3095897

Models2 X 09 / 2 X 12 Wiring Diagram Heatpump
INDOOR

UNIT

OUTDOOR

BL.
THlt

tTi2

L._

TH3

TH3
RVS

RVS

TB
J6J7

BLK _

BLK

TB 1 _

BLK
J18

ILTVI
FAN

-_-_

H.LT.V

_RE_O

1._2

i NLW

ii Rv__,
DC RT_

FAN

K5 rTq
H.LT.V

-L_
Lr_LL,,Id

Relay Board

COMP.
-12V

BLK

Jll

RED *_0VDC

r N

MOTO

RED
v

*OR

FAN 1 BLUE

F-I
-L,'d

STEF

GREEN
J3

RED+30VDC
BU_OCRTN i

GREEN

FANI BLUE

co(i)

K9
*BLUE
K7

_IFAN
FAN23RgO
BLK

YEL VSP

BLOC

*BLUE

FAN2 REO

_,j

MOTOR

TAC

ljl:

!,LL_

i_L_

*BR

670 control

14_-F,J

FAN3

B_K

*G_YEL

TAC 671 Main
Board

J_-"

+30v WH

GREEN
_BR

i._2
F-1

12V

BLK*12V

GREEN

.._j ,,
L-J

Jt4

PPE
lTo_

___

TAC673
:o_1

:673

' Boarc

JIB

/_{!_ _

_--_f_ _

-_yEt.
_w__

*BLUE

cc@

COMP

UNITQ

BLK

TH3

INDOOR

UNIT

TAO 671 Main
Board

TAC672B

II OND;

TAC 670 control

GND

II
BLK
N BLUE

I I

DC_

LEGEND

LI BR
_GREEN

Capacitor

FC
GND

-Fan Capacitor
*Ground

RVS

*Reversing

115VAC

TH 1

=Return airsensor

TH 2

-Indoor coil sensor

TH3

Main AC Supply
FAN
MOTOR

5130252398i-A

DFF2HH12J1A

-Outdoor

coil sensor

- Indoor unit 1 circuit

(_)

= Indoor unit 2 circuit

FAN
MOTOR

FAN COIL WITH DFC2H318J2A,

DFC2H324J2A

Condensing

-16 AWG

_
*

-14 AWG
=12 AWG

ALL OTHER WIRES 18 AWG

Valve Sehoid

HLTV -HeatingLow Tamp.Valve
TB
-Terminal Block
BLDC * brushless DC

LI N_

Fig, 13 -- System Wiring Schematic DFF2HHO9J1A,

-Compressor

COMP*Compressor

Unit

0
•

Splice
Terminal(Unmarked)

Factory Wiring

......

Field Control

_._

Field Power Wiring

Wiring

Models2 X 09 / 2 X 12 Wiring DiagramCoolingOnly

INDOORUNIT ®

OUTDOOR

BL_

INDOOR

UNIT

O
TB

J6J7 J8

TB 1 J [

BLK

TB1

BLK

FAN

J7 J6

J18 ___

_BLUE

FAN

;if
THI

BLK

F-_._

UNITQ

GR_EL

BLK

"RE_

OR
"RED

R_I

cc(

_EN

K5 r73 l

H,L.'KV

L- _
RVS
_K_._--i'-_K_LL
B.L._V
l._J

TB®

JiB

TB_

! 'B

TAB 673
Relay Board

TAC 673
:L

KL_L,,.LJ

RMS

COMP.

RED+12V

_OR

+30V WH

+3OV WH

MOTOR
GREEN

RE_* 30VDC

FAN 1 BL_

y_L VSp

FAN 2 RED

GREEN

--_,2d

_BR

ccQ

FAN 2 _

BLUE

K7i'-I

BLD_

BLUE

iLLJ

K_i,L;J

MOTOR

'GR/YEL

TAB 671 Main
Board

TAC

GREEN

J._J
_'-_

BLK-12V

GREEN

FAN 1 BLU

-]K8

_BLDC

TAB 674 Main
Board

670 contro{

GND

;

COMP,

TAC 678 control

GND

BOE'I:

BLK
BLUE

DC_

LEGEND

L1 BR
_GREEN

-16AWG

-Compressor Capacitor

rk4 AWG
-42 AWG

BOMP-Compressor

FC@
L1N_

FC
-Fan Capacitor
GRD -Ground

_L OTHER WIRES 48 AWG

TB
-Terminal Block
BLDB * brushless DB

0
•

TR t

-Return airsensor

Factory Wiring

TH 2

-Indoor coil sensor

......

Field Control Widng

_._

Field Power Wiring

115VAC

-Indoorunitl
_)

*
*

circuit

- Indoor unit 2 circuit

Main ACSupply
FAN
MOTOR

51302523982-A

Fig. 14 -- System Wiring

Schematic

DFF2AHO9JIA,

DFF2AH12JIA

FAN
MOTOR

FAN COIL WITH DFC2H318J2A,

DFC2A324J2A

Condensing

Unit

Splice
Terminal(Unmarked)

START-UP
System

dirt and debris

Checks
Indoor

1. Conceal

3. Ensure

all tubing

4. Fasten tubes

6. Connect

tube slopes

and connections

downward

are properly insulated.

of unit. Fan mo-

Units

ELECTRICAL

which

the cables and tubing

the air conditioner

to the power

all air conditioner

operating

er's Manual for operating

pass.

Refer to Own-

remote
located

details.

UNIT

1. Do all the remote
2. Do the display

controller

buttons

function

HAZARD

this

warning

could

result

in personal

To avoid the possibility of electric shock, before performing
any cleaning and maintenance
operations,
always turn off
power to the system by pressing the ON/OFF button on the

source and turn it

modes.

SHOCK

Failure to follow
injury or death.

Oil.

control and turn off the separate
near the unit.

If the indoor unit is on a separate
disconnect off as well.

properly?

disconnect

switch

switch, be sure to turn this

panel lights work properly?

3. Does the air deflection
4. Does the drainage
OUTDOOR

in base

along

to the outside wall.

5. Seal the hole through

INDOOR

holes

the tubing where possible.

2. Make sure that the drainage
its entire length.

7. Check

from drain

tors are waterproof.

louver

function

properly?

work?

COMPONENT

UNIT

1. Are there unusual

Failure
noises or vibrations

2. Is noise, drain water or airflow
turb the neighbors?

during

operation?

from the unit likely

DAMAGE

HAZARD

to follow this may result in unit component

damage.

Do not wash
filter
in water
over
120°F
(to avoid
shrinkage).
Do not expose
filter to fire (to avoid fire
damage). Do not expose filter to direct sunlight. Clean filter
more frequently when air is extremel'¢ dirty.

to dis-

3. Are there any gas leaks?
EXPLAIN THE FOLLOWING
ITEMS TO THE CUSTOMER,
WITH THE AID OF THE OWNER'S
MANUAL:
1. How to turn the air conditioner

on and off; selecting

cool-

ELECTRICAL
HAZARD

ing, heating and other operating
modes: setting a desired
temperature:
setting the timer to automatically
start and
stop air conditioner
operation: and the other features of the
remote

controller

2. How to remove

and display

Do not attempt
box.

louver.

Manual

To Clean

Outdoor

may be performed

result

in personal

and installation

instructions

carefully

by the equipment

to clean

the Indoor

or service

Unit Front

components

Panel

in control

if the front panel of

the unit becomes dirty or smudged, wipe the out-side of the panel
with a soft dry cloth. Use a mild liquid deter-gent
and wipe off

CARE AND MAINTENANCE
The following

DAMAGE

panel.

4. Explain care and maintenance.
5. Present the Owner's
to the customer.

FIRE COMPONENT

Failure to follow this warning
could
injury, death and or property damage.

and clean the air filter.

3. How to set the air deflection

SHOCK,

To Clean

with a dry cloth.
Indoor

Coil --

front panel and vacuum
damage fins.

owner.

To clean the coil, remove
the coil fins, using

indoor

unit

care not to bend

Units
LUBRICATION
-outdoor-fan
motors
Air Filters

The indoor-fan,
automatic air sweep, and the
are factory lubricated and require no oiling.

for Indoor

Units

ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
Before performing recommended maintenance, be sure unit
main pow*er switch is turned off.
CLEANING
COILS -- Coil should be washed out with

COMPONENT

water or blown out with compressed
air. Clean coil annually or as required by location and outdoor air conditions. Inspect coil monthly and clean as required. Fins
are not continuous through coil sections. Dirt and debris
may pass through first section, become trapped between
the row of fins and restrict outdoor unit airflow. Use a

Operating your system with dirty air filters may damage the
indoor
unit
and,
in
addition,
can
cause
reduced

flashlight to determine if dirt or debris has collected
tween coil sections. Clean coil as follows:

DAMAGE

Failure to follow
damage.

HAZARD

this caution

may result

in unit component

performance,
intermittent
system operation,
frost build up
on the indoor coil, and blown fuses. Inspect and clean or
replace the air filters monthly.
TO REMOVE

AIR FILTERS

lifting the lower part and pulling
Pull out the filters.

be-

TO CLEAN

1. Turn off unit power and install lockout tag.

vacuumed

2. Using a garden hose or other suitable equipment, flush
coil from the outside to remove dirt. Be sure to flush all

excess water,
14

or washed

REPLACE
in warm

and replace

Open

the unit's

it gently

FILTERS
water.

it back.

front

outward

panel by

and upward.

Filters

can

Shake filter to remox, e any

If the filter has begun

to break

downor istorn,replace
it. Replacement
filtersareavailable
through
alocaldealer.

Clean
cleaned

SERVICE
The following
technician.

should

be performed

or Replace
or replaced

Drain

Pan --

by a qualified

The drain pan should
service

1. Place a plastic sheet on the floor
may spill from the drain pan.
by a qualified

service

Clean Condensate
Drains -- (;lean all drains and drain pans at
the start of each cooling season. Check the flow by pouring water
into the drain.

to catch

2. Remove

the intake grille and distribution

3. Remove

the condensate

water drain into a 3-gallon

water

only be

technician.
any water

that

assembly.

in the drain pan by letting

bucket.

TROUBLESHOOTING

ELECTRICAL

SHOCK

Failure to follow
injury or death.

this

(Tables 6-8, and Fig. 15)

HAZARD
warning

Be sure to check for broken
troubleshooting
system.

could

STATUS

Indicators

INDICATION

CORRECTION
Check

1 Flash

Faulty

TH1

Sensor

the THI

thermistor

Check for proper
Replace

Faulty

TH2

Sensor

Low Pressure

Check system
High Pressul_e

Check operating
Low Voltage

6 Flashes

High Voltage

Check electrical
Check operating
Check electrical

if necessary.

charges.
(THI and TH2) for correct resistance.

pressures.

Check refrigerant
Check thermistors

5 Flashes

charges.
(THI and TH2) for correct resistance.
voltage.
connections.
voltage.
connections.

OPERATION
LED.
INDICATES ERROR

POWER LED.
OFF WHEN SYSTEM IS
OPERATING AND FLASHES
WHEN SYSTEM IS IN ERROR
(DOES NOT INDICATE ERROR CODE)
CLEAN FILTER INDICATOR
FLASHED AFTER 250 HOURS
OF OPERATION

Fig. 15 -- Indicator Lights

resistance.

pressures.

Check refrigerant
Check thermistors

4 Flashes

for correct

connection.

thermistor

Check system
3 Flashes

resistance.

if necessary.

thermistor

Check for proper
Replace

for correct

ACTION

connection.

thermistor

Check the TH2
2 Flashes

in personal

wires or loose cable lugs before

Table 6_Service
LAMP

result

Table 7--DFS2A/DFS2H

Thermistor TH-1, TH-2, and TH-3 Temperature to Resistance Conversion

TEMPERATURE

TEMPERATURE
(_C)

TEMPERATURE
TOLERANCE
(_P)

TEMPERATURE
TOLERANCE
(_C)

-4.0

-20

±2.0

±1.1

30.89

32.44

34.05

-2.2

-19

+2.0

+1,1

29.46

30.93

32.45

-0.4

-19

+ 2.0

+ 1.1

28.12

29.51

30.94

1,4

-17

± 2.0

± 1.1

26.84

28.16

29.51

3.2

-16

± 2.0

± 1.1

25.64

26.88

28.15

5,0

-15

+2.0

+1,1

24.49

25.66

26.87

6,8

-14

+2.0

+1,1

23.40

24.52

25.66

8,6

-13

±2.0

±1.1

22.38

23.43

24.50

19.4

-12

±2.0

±1.1

21.40

22.39

23.41

12.2

-11

+2.0

+1,1

20.47

21.41

22.38

14.0

-10

+ 1.8

+ 1.0

19.59

20.48

21.40

15.8

-9

±1.8

±1.0

18.74

19.59

20.45

17,6

-8

±1.8

±1.0

17.94

18.74

19.56

19.4

-7

+1.8

+1,0

17117

17193

18171

21.2

-6

+1.8

+1.0

16.44

17.16

17.90

23.0

-5

--+1.8

--+1.0

15.75

16.43

17.13

24.8

-4

±1.8

±1.0

15.10

15.74

16.40

26,6

-3

+1.8

+1.0

14.47

15.08

15.71

28.4

-2

+ 1.8

+ 1.0

13.87

14.46

15.05

39.2

-1

±1.8

±1.0

13.31

13.86

14.42

32.0

--+1.8

--+1.0

12.77

13.29

13.83

33.8

+1.8

+1.0

12.25

12.74

13.25

35.6

+1.8

+1.0

11.75

12.22

12.70

37.4

--+1.8

--+1.0

11.28

11.73

12.18

39,2

±1.8

±1.0

10.83

11.25

11.68

41.0

+1.8

+1.0

10.40

10.80

11.21

42.8

+1,8

+1.0

9.986

10.370

10.76

44.6

+1.8

+1.0

9.595

9.960

10.33

46.4

+1.8

+1.0

9.222

9.569

9.921

48.2

±1.8

±1.0

8.866

9.196

9.530

59.0

±1.8

±1.0

8.526

8.840

9.157

51.8

+1.8

+1.0

8.197

8.496

8.797

53.6

+1.8

+1.0

7.883

8.167

8.453

55.4

±1.8

±0.6

7.583

7.853

8.125

57.2

--+1.8

--+0.6

7.296

7.553

7.812

59.0

+1.8

+0.6

7.022

7.267

7.513

69.8

+1.6

+0.9

6.761

6.993

7.227

62.6

±1.6

--+0.9

6.510

6.731

6.954

64.4

±1.6

±0.9

6.271

6.481

6.693

66,2

+1.6

+0.9

6.042

6.242

6.444

68.0

+1.8

+o.6

5.822

6.013

6.205

69.8

±1.6

±0.9

5.611

5.793

5.975

71.6

±1.6

±0.9

5.408

5.581

5.755

73.4

+1.8

+0.6

5.214

5.379

5.544

75.2

+1.6

+0.9

5.028

5.185

5.343

77.0

_+1.8

±0.9

4.850

5.000

5.150

78.8

±1,6

±0.9

4.675

4.821

4.968

89.6

+1.6

+o.e

4.508

4.650

4.793

82.4

+1.8

+0.9

4.347

4.486

4.626

84.2

±1,8

±1.0

4.193

4.329

4.466

86.0

± 1.8

± 1.0

4.046

4.179

4.312

87.8

+1.8

+1.0

3.904

4.033

4.163

89,6

+1,8

+1.0

3.767

3.894

4.020

91,4

±1,8

±1.0

3.637

3.760

3.884

93.2

±1.8

±1.o

3.511

3.631

3.752

NOTE: Resistance tolerance

_+ 3%.

MINIMUM
RESISTANCE
(K_)

MEAN
RESISTANCE
(K_)

MAXIMUM
RESISTANCE
(K_)

Table 7 --DFS2A/DFS2H

Thermistor TH-1, TH-2, and TH-3 Temperature to Resistance Conversion (Cont.)

TEMPERATURE
_F)

TEMPERATURE
(L_C)

TEMPERATURE
TOLERANCE
_F)

TEMPERATURE
TOLERANCE
(_C)

MINIMUM
RESISTANCE
(K_)

MEAN
RESISTANCE
(K_)

MAXIMUM
RESISTANCE
(K_)

95.0

+ 1.8

+ 1.0

3.391

3.508

3.626

96,8

+ 2.0

+ 1.1

3.275

3.390

3.505

98.6

± 2.0

± 1.1

3.164

3.276

3.389

100.4

±2.0

±1,1

3.058

3.167

3.277

102.2

+2.0

+1,1

2.956

3.062

3.169

104.0

±2.0

±1.1

2.857

2.961

3.066

105.8

+2.6

+1.1

2.762

2.864

2.966

107.6

±2.0

±1.1

2.671

2.770

2.870

109.4

+2.2

+1.2

2.583

2.679

2.777

111.2

±2.2

±1,2

2.498

2.593

2.688

113.0

+ 2.2

+ 1.2

2.417

2.509

2.602

114.8

±2.2

±1.2

2.339

2.429

2.520

116,6

+2.2

+1.2

2.264

2.352

2.441

118,4

±2.3

--+1.3

2.192

2.227

2.364

120.2

+2.3

+1.3

2.122

2.206

2.291

122.0

±2.3

±1.3

2.055

2.137

2.220

123.8

+2.3

+1.3

1.990

2.070

2.151

125.6

±2.3

±1.3

1.928

2.006

2.085

127.4

+2.3

+1.3

1.867

1.943

2.021

129.2

±2.3

±1.3

1.809

1.883

1.959

191.0

+2.5

+1.4

1.753

1.826

1.900

192.8

±2.5

±1.4

1.699

1.770

1.842

194.6

+ 2.5

+ 1.4

1.647

1.717

1.787

196.4

±2.5

±1.4

1.597

1.665

1.734

198.2

+ 2.5

+ 1.4

1.549

1.615

1.683

140.0

--+2.5

--+1.4

1.503

1.567

1.633

141.8

±2.7

±1.5

1.458

1.521

1.585

143.6

+ 2.7

+ 1.5

1.414

1.476

1.539

145.4

± 2.7

± 1.5

1.372

1.432

1.494

147.2

+2.7

+1.5

1.332

1.391

1.451

149.0

±2.7

±1.5

1.293

1.350

1.409

150.8

+ 2.9

+ 1.6

1.255

1.311

1.369

152.6

± 2.9

± 1.8

1.219

1.274

1.330

154.4

+2.9

+1.6

1.184

1.237

1.292

156.2

±2.9

±1.6

1.150

1.202

1.256

158.0

+2.9

+1.6

1.117

1.168

1.221

NOTE: Resistance tolerance

_+ 3%.

Table
SYMPTOM
Unit Fails to Start.

8---General

PROBABLE

System

Troubleshooting

Guide

CAUSE

CORRECTIVE

Power supply from outdoor unit to indoor unit is
not connected.
Power supply to unit not connected
LED Off).

ACTION

Check for proper connection of power at disconnect.

(POWER

Fuse blown (POWER LED Off).

Reset circuit breaker or replace line fuse.

ON/SEND button has not been pressed.

Press ON/SEND button on remote control.

Indoor unit does not receive transmitted commands,

Make sure that nothing is blocking the remote control transmission to the unit.

Only Indoor Fan Works
when Cooling or Heating is Desired. NOTE:
Indoor fan runs continuously in cooling mode.

The selected mode is Fan Only, or Cool when
heating is desired,

Check if the remote control is in the desired mode. If not, select
the correct mode (refer to User manual). Also note that every 15
minutes (maximum) the compressor will be switched minimally
on for 3 minutes.

Temperature is set to a value which is too high (in
Cool mode),

Observe the temperature setting on the remote control. Also note
that each 15 minutes (maximum), the compressor will be
switched on minimally for 3 minutes.

Only Indoor Fan Motor
and Outdoor Fan Motor
are Working. No Cooling and/or Heating

Overload safety device on compressor is cut out
due to high temperature.

Switch off power and try again after one hour.

Compressor run capacitor is burnt.

Replace compressor run capacitor.

Takes Place.

Compressor winding shorted.

Replace compressor.

No Air Supply at Indoor
Unit (Compressor Operates),

Indoor fan motor is blocked or turns slowly.

1. Check vottage. Repair wiring if necessary.
2. Check indoor fan wheel if tight on motor shaft. Tighten if necessary.

Indoor fan motor capacitor is burnt.

Replace indoor fan motor capacitor.

Indoor fan motor winding is burnt.

Replace indoor fan motor.

In Heat mode: Delayed start for indoor fan motor.

Normal software delay (maximum of 20 sec).

Clogged air filters.

Clean filters.

Lack of refrigerant. Ice formation on the evaporator coil.

Unit must be charged (according to the nameplate) after Iocalizing the gas leak.

Clogged air filters.

Clean filters.

In Heat Mode, Only
Compressor Runs. Outdoor and Indoor Fan
Motors are Stopped.

A/C operating in defrost cycle.

Wait 10 minutes (maximum) until the unit resumes normal operation.

Water Accumulates
and Overflows from
Evaporator Drain Pan.

Drain pan pipe or hose is clogged or the spout of
drain pan is clogged,

Disassemble plastic drain pipe from spout of evaporator drain
pan. Flush with clean water.

Unit Does Not Operate
in Desired Mode.

The unit is in the Auto, (emergency) mode.

Push button once to cancel Auto, (emergency) mode.

Faulty remote control settings.

1. If remote control symbols respond to the commands correctly,
check the unit ID Code (Standard or Alternative). Refer to
"Changing Unit ID Code" in the Owner's Manual.

Low Capacity.

2. If Oool commands are OK, but Heat symbol is skipped on
LCD, refer to setting the remote to cooling or heat pump on the
Owner's Manual.
3. Replace remote control.

The Unit Receives Interference from Other Remote Control or the Remote Control Interferes
with Other Instruments.

Remote control low battery.

Replace remote control batteries.

Common Infrared Code.

Modify the Remote Control IR transmission code.
Refer to "Changing Unit ID Code" in the Owner's Manual.

IMPORTANT:
The units

are designed

to work

in heat mode

only down

to -10°C

(14 ° F) outdoor

If at starting time outdoor temperature
is equal or lower than -10°C
(5) times to indicate that low temperature
protection
is activated.

(!4°F)

ambient

temperature.

the unit wil! not start and the filter led will flash

International Comfort Products, LLC
Lewisbur_, Tennessee 37091
Manutacturer

reserves

the right to discontinue,

or change

at any t_me, speolhCatlOnS

or designs

without

notice

and without

incurring

ObllgBtlons,

five

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ICP Air Conditioner/heat Pump(outside Unit) Manual L0803419

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