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8

THERMOSTAT

EEC HEATER MODEL

TYPE

5

7.5

10

15

20

SINGLE STAGE

.4

.4

.4

.8

.8

TWO        1ST

N/A

N/A

N/A

.4

.4

STAGE     2ND

N/A

N/A

N/A

.4

.4

Connection to unit

Wire low voltage in accordance with wiring label on the blower.
Use no. 18 AWG wire to make the low voltage connections
between the thermostat, the unit, and the outdoor equipment.

If the thermostat is located more than 100 feet from the unit
use 16 AWG wire. All wiring must be NEC Class 1 and must be
separated from incoming power leads.

The thermostat preheat anticipator should be adjusted to match
the current listed below for the EEC model heat assembly to be
installed.

Transformer Information

The low-voltage transformer is equipped with a 208- or 230-volt
tap. The transformer is factory wired for 230-volt operation. For
208-volt operation, remove the yellow wire from the 230-volt
terminal and install it onto the 208-volt terminal.

The acceptable voltage range for each tap is as follows:

Tap

Voltage Range

230

207 – 253

208

187 – 229

Time Delay Relay Information

A fan relay is provided to control the operation of the indoor
fan motor. All models are equipped with a time delay “OFF”-
type fan relay which will allow the fan motor to continue to
operate for a preset time after the relay is de-energized.

When used with a heat pump, the heat output must be staged
for models above 10 kW. W1 should be wired as auxiliary heat
to assist the heat pump. W2 must only be wired as emergency
heat.  Both stages of heat should never be wired so as to be
energized while the heat pump is operating. See the Blower
Speed/Static Table for maximum allowable auxiliary first-stage
heat. All EEC series electric heat assemblies over 10 kW have
breakers factory-installed on the heat assembly.

WARNING

BEFORE PERFORMING ANY WORK ON THIS EQUIPMENT,
POWER SUPPLY MUST BE TURNED OFF AT THE
HOUSEHOLD SERVICE BOX TO AVOID THE POSSIBILITY OF
SHOCK, INJURY, DAMAGE TO EQUIPMENT, OR DEATH.

WARNING

IMPROPER INSTALLATION OF THE ELECTRICAL WIRING

OR THE HEAT ASSEMBLY MAY RESULT IN FIRE, SERIOUS
PERSONAL INJURY, OR DEATH.

UNIT

FLEXIBLE
TUBING-HOSE
OR PIPE

DRAIN 

CONNECTION

A POSITIVE LIQUID 
SEAL IS REQUIRED

2” MINIMUM

3” MINIMUM

Install condensate drain trap as close to the coil as  possible.
Use drain connection size or larger. Do not operate unit
without trap (see illustration below.) Unit must be level or
slightly inclined toward drain.

CAUTION

1.  Do not connect the drain line to a closed sewer.

2.  Never terminate an open sewer or drain connection

within the return air duct, platform or return plenum.

3.  Pitch the drain line at least 

1/4

” per foot away from the

drain pan. 

4.  If condensate drain connection is on the negative side of

the blower, a trap must be installed to ensure positive
drainage.

5.  Condensate drain lines should not be reduced in size

from the connection size supplied. 

6.  The drain line should be insulated where necessary, to

prevent sweating and damage due to condensate
forming on the outside surface of the line.

7.  Test condensate drain line with water before operating

system.

8.  If unit is located in or above a living space where

damage may result from condensate overflow, a field
supplied, external condensate pan should be installed
under the entire unit, and a secondary condensate line
(with appropriate trap) should be run from the unit into
the pan. Any condensate in this external condensate
pan should be drained to a noticeable place. As an
alternative to using an external condensate pan, some
localities may allow the running of a separate 

3/4

condensate line (with appropriate trap) per local code
to a place where the condensate will be noticeable.

CAUTION

For downflow, or any installation where condensate
overflow could create a hazard or water damage, the
emergency drain fitting MUST be used. The emergency
drain MUST be left open. If the emergency drain has to be
piped away from the air handler, its outlet MUST be
installed in a location that would allow any drainage to be
immediately noticed.

Condensate Drain Trap

CONDENSATE DRAIN PLUMBING

24 VOLT CONTROL SYSTEM

11

11

Содержание A*PA24A1 Series

Страница 1: ...ping 6 Factory and Field installed Expansion Valves 6 Ductwork 7 Return Air Ducting 7 Return Air Platform Height 7 LINE VOLTAGE CONNECTIONS 7 24 VOLT CONTROL SYSTEM 8 CONDENSATE PLUMBING 8 WIRING DIAGRAM 9 DIMENSIONS 10 BLOWER SPEED STATIC OPERATION TABLE 11 ELECTRIC HEAT KIT 12 Heating Specifications 13 WARRANTY 14 NOTE THESE INSTRUCTIONS ARE INTENDED AS AN AID TO QUALIFIED SERVICE PERSONNEL FOR ...

Страница 2: ... situation which if not avoided could result in death or serious injury CAUTION indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury CAUTION used without the safety alert symbol indicates a potentially hazardous situation which if not avoided may result in property damage DANGER WARNING CAUTION CAUTION WARNING IMPROPER INSTALLATION ADJUSTMENT ALTE...

Страница 3: ...individuals specially trained and experienced in the installation of this type equipment and related system components Installation and service personnel are required by some locales to be licensed Persons not qualified shall not install this equipment nor interpret these instructions INTRODUCTION Models A PB and Plare designed for flexibility and can be used for upflow horizontal or downflow appl...

Страница 4: ...GE DUCT 600 FPM 24 MINIMUM RETURN GRILLE 500FPM RETURN PLATFORM LINED WITH 1 FIBERGLASS INSULATION REFER TO LOCAL CODES CLOSET AIR HANDLER Upflow Installation With Return Duct DISCHARGE DUCT 600 FPM 24 MINIMUM RETURN DUCT WITH A MINIMUM OF 1 2 FIBERGLASS DUCT LINER 500 FPM REFER TO LOCAL CODES AIR HANDLER MAY ALSO BE DOWNFLOW DISCHARGE DUCT 600 FPM 24 MINIMUM RETURN GRILLE 500FPM RETURN PLATFORM L...

Страница 5: ...from left hand side of air handler and re install on right hand side Change splash baffle location from left hand to right hand side of drain pan flange 4 Remove the horizontal coil support bracket from the right hand side of the air handler 5 Reinstall coil assembly in the air handler 6 Reattach coil support bracket to the left hand side of the air handler 7 Replace front panels CAUTION Horizonta...

Страница 6: ...e filter grille may be installed for closet applications If this method is not desirable cabinet extension kit No 65 1647 for A24 A30 and A36 or No 65 1649 for A42 A48 and A60 may be ordered The extension kit screws to the side of the air handler and extends the length of the air handler coil cabinet In addition the kit includes a filter compartment and door Emergency Drain Opening The indoor coil...

Страница 7: ...D BE TAKEN TO AVOID OVERHEATING THE TXV VALVE AND CAUSING DAMAGE TO THE INTERNAL COMPONENTS 3 Attach the bulb securely with the copper strap provided 4 Insulate the bulb thoroughly with a suitable insulation material such as cork tape 5 Coils with TXVs should be charged 10 12 degrees or one degree of sub cooling This supercedes any subcooling value listed with condensing unit s literature For the ...

Страница 8: ... 6 3 7 6 13 4 4 4 2 5 163 8 41 6 221 4 56 5 3 7 6 3 7 6 13 4 4 4 2 5 11 8 WARNING BEFORE PERFORMING ANY WORK ON THIS EQUIPMENT POWER SUPPLY MUST BE TURNED OFF AT THE HOUSEHOLD SERVICE BOX TO AVOID THE POSSIBILITY OF SHOCK INJURY DAMAGE TO EQUIPMENT OR DEATH LINE VOLTAGE CONNECTIONS 1 The power supply can be connected through the right side or top of the air handler Conduit knockouts are provided f...

Страница 9: ...NING IMPROPER INSTALLATION OF THE ELECTRICAL WIRING OR THE HEAT ASSEMBLY MAY RESULT IN FIRE SERIOUS PERSONAL INJURY OR DEATH UNIT FLEXIBLE TUBING HOSE OR PIPE DRAIN CONNECTION A POSITIVE LIQUID SEAL IS REQUIRED 2 MINIMUM 3 MINIMUM Install condensate drain trap as close to the coil as possible Use drain connection size or larger Do not operate unit without trap see illustration below Unit must be l...

Страница 10: ...3 60 60 6 13 3 6 13 3 10 5 3 10 5 3 kW does not include motor watts Ampacities and over current protection based on largest air handler motor load Refer to specific name plate for exact ampacity and overcurrent protection size Minimum wire ampacity values are used for sizing field power conductors Refer to the National Electrical Code latest version Article 310 for sizing conductors When more than...

Страница 11: ...8 15 17 22 18 14 16 1 4 A PC48A1 2 1 4 3 5 8 13 1 4 15 48 1 8 19 1 8 21 26 22 16 3 8 22 1 4 A PC48B1 2 1 4 3 5 8 13 1 4 15 48 1 8 19 1 8 21 26 22 16 3 8 22 1 4 A PC60A1 2 1 4 3 5 8 13 1 4 15 48 1 8 19 1 8 21 26 22 16 3 8 22 1 4 INLET WIDTH INLET WIDTH J E D C A B K LOW VOLT CONNECTIONS LOW VOLT CONNECTIONS LINE VOLTAGE KNOCK OUTS OUTLET OPENING H G F I Dimensions 10 All dimensions in inches 11 13 ...

Страница 12: ...950 1930 1840 1770 1590 LOW 20 kW 0 35 15 kW 0 35 1360 1350 1340 1185 1080 Air flow shown at the following conditions No heat elements in air handler Decrease CFM 1 for 5 kW 7 5 kW or 10 kW heat kits Decrease CFM 2 for 15 kW or 20 kW heat kits 60 Hertz 230 volts Decrease CFM 6 for 208 volt operation Standard air handler filter Dry coil airflow shown BLOWER SPEED STATIC OPERATION TABLE Specificatio...

Страница 13: ...compartment remove the cover plate from the element housing Remove cover plate Remove air handler field wiring box and discard Remove two screws 11 14 11 15 5 Cut the wire tie holding the heater plug and unroll the heater plug harness so that it will hang out of the electrical box 6 Carefully slide the heat assembly into the element opening Be sure the heater kit or elements do not rub or scrape a...

Страница 14: ...than 230 multiply temperature rise by capacity correction factor Refer to CFM tables to determine Cfm at total external static pressure in system For correction of unit output multiply the correction factor times the kW rating at 230 volts For correction of temperature rise multiply the correction factor times the rise calculated for the kW at 230 volts CFM 3 5 7 5 10 15 20 500 19 32 600 16 26 40 ...

Страница 15: ...14 ...

Страница 16: ...OR FINAL SELLER MAY PROVIDE A WARRANTY ON UNITS SOLD OUTSIDE OF THESE AREAS LIMITED FIVE YEAR WARRANTY CareCo will provide a replacement part or component that proves to be defective in material or workmanship WARRANTY LIMITATIONS Limited Warranty does not include allowances for labor or travel expense connected with the installation of parts so furnished in this Limited Warranty or for field repa...

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