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ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES

IMPORTANT —

This Document is 

customer property

 and is to remain with this unit. Please return to service information

pack upon completion of work.

 

HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICING

WARNING:

Installer’s Guide

General Information

1

Unit Installation

3

Upflow

3

Downflow

4

Horizontal Left

6

Horizontal Right

7

Duct Connections

8

Refrigerant Piping

8

Brazing to Evaporator

9

Condensate Drain Piping

9

Electrical — Power Wiring

10

Control Wiring

10

Hook-up Diagrams

11

Outline Drawing

14

Checkout Procedures

16

Contents

A. GENERAL INFORMATION

WARNING

!

THIS INFORMATION IS FOR USE BY INDIVIDUALS
HAVING ADEQUATE BACKGROUNDS OF ELECTRICAL
AND MECHANICAL EXPERIENCE. ANY ATTEMPT TO
REPAIR A CENTRAL AIR CONDITIONING PRODUCT
MAY RESULT IN PERSONAL INJURY AND/OR PROP-
ERTY DAMAGE. THE MANUFACTURER OR SELLER
CANNOT BE RESPONSIBLE FOR THE INTERPRETA-
TION OF THIS INFORMATION, NOR CAN IT ASSUME
ANY LIABILITY IN CONNECTION WITH ITS USE.

CAUTION

!

To prevent shortening its service life, the air handler
should not be used during the finishing phases of con-
struction. The low return air temperatures can lead to
the formation of condensate. Condensate in the pres-
ence of chlorides and fluorides from paint, varnish,
stains, adhesives, cleaning compounds, and cement
creates a corrosive condition which may cause rapid
deterioration of the cabinet and internal components.

These instructions do not cover all variations in systems
or provide for every possible contingency. Should fur-
ther information be desired or particular problems arise
which are not covered sufficiently by this manual, con-
tact your local distributor or the manufacturer as listed
on the air handler nameplate.

These air handlers are shipped from the factory in the
upflow or horizontal right configuration and are fully
convertible to downflow or horizontal left. Refer to
Section B beginning on page 3 for additional informa-
tion.

INSPECTION

Check carefully for any shipping damage. This must
be reported to and claims made against the transpor-
tation company immediately. Check to be sure all
major components are in the unit. Any missing parts
should be reported to your supplier at once, and re-
placed with authorized parts only.

CAUTION

!

Cardboard packing material must be removed from in-
side the blower assembly before starting the unit.
Failure to do so may cause indoor blower motor failure.

INSTALLATION LIMITATIONS & RECOMMENDATIONS

The general location of the air handler is normally
selected by the architect, contractor and/or home owner
for the most effective application and satisfaction.

NOTE: CONDENSATION MAY OCCUR ON THE SUR-
FACE OF THE AIR HANDLER WHEN INSTALLED IN AN
UNCONDITIONED LOCATION. WHEN UNITS ARE IN-
STALLED IN UNCONDITIONED SPACES, VERIFY THAT
ALL ELECTRICAL AND REFRIGERANT LINE PEN-
ETRATIONS ON THE AIR HANDLER ARE SEALED
COMPLETELY.

18-GE09D1-9

Convertible Air Handlers
1-1/2 – 5 Ton

2/4TEH3F18B1000A

2/4TEH3F42B1000A

2/4TEH3F24B1000A

2/4TEH3F48B1000A

2/4TEH3F30B1000A

2/4TEH3F60B1000A

2/4TEH3F36B1000A

*For use with BAYHTR13 or
BAYHTR33 series heaters
ONLY

Summary of Contents for 2/4TEH3F18B1000A

Page 1: ...s do not cover all variations in systems or provide for every possible contingency Should fur ther information be desired or particular problems arise which are not covered sufficiently by this manual con tact your local distributor or the manufacturer as listed on the air handler nameplate These air handlers are shipped from the factory in the upflow or horizontal right configuration and are full...

Page 2: ...if the minimum clearances to combustible materials and service access are observed the above installations are suitable This area may also be used for other purposes includ ing an electric hot water heater but in no case shall a fossil fuel device be installed and or operated in the same closet alcove or utility room In addition these air handlers are suitable for installa tion in an attic garage ...

Page 3: ... width requirements must be considered in the overall space needed 17 These units are not approved for outdoor installa tion 18 These units are approved for draw through appli cation only NOTE No atomizing style humidifier is allowed in the return plenum with the use of this unit 19 Flow through Bypass Humidifiers Excessive bypass air may cause water blow off which will adversely affect system ope...

Page 4: ... as shown in the outline drawing e On units with sheetmetal returns Return ple num should be flanged Sheetmetal screws must be 1 2 in length or shorter f No sheetmetal screws may be used to attach re turn duct work on the side of the unit g Pedestal and unit should be isolated from the foundation using a suitable isolating material h Openings where field wiring enters the cabinet must be completel...

Page 5: ...ll the baffle to coil with gasket material compressed against the coil f Install the water blow off baffles provided on each side of the coil with the flange at the top as shown in Figure 9 The bottom of the baffle is to be as close to the bottom of the coil as possible g Install the 7 8 wide gasket in each side of the drain pan as shown in Figure 9 h Place the 2 water diverter baffles 5 ton model...

Page 6: ...should not ex ceed the face velocity of the filter being used The factory installed filter should then be removed from the unit Remove the factory installed baffle assembly from the apex of the coil by using a 5 16 nutdriver to remove the hex head screws Replace this baffle with the factory supplied narrow coil baffle using the screws re moved previously See Figure 5 CAUTION When installing the na...

Page 7: ...revent sagging The service access must remain unobstructed If the unit is sup ported along the length of the front and back with rails the air handler only needs to be sus pended at both ends See Figure 10 with rails the air handler only needs to be sus pended at both ends See Figure 10 If the unit is not suspended it must be supported as mentioned above and isolated carefully to pre vent sound tr...

Page 8: ...prevent air leakage NOTE No sheetmetal screws may be used to attach re turn ductwork on the side NOTE On units with sheetmetal returns Return plenum should be flanged Sheetmetal screws must be 1 2 in length or shorter See Figure 12 NOTE If the convertible duct flanges are not used they must be removed and discarded for proper airflow NOTE Any duct board return connection can be made to the sides o...

Page 9: ...g fittings in the condensate drain lines 2 Field supplied tubing should be cut square round and free of burrs at the connecting end Clean the tubing to prevent contaminants from entering the system 3 Run refrigerant tubing into the stub sockets of in door unit coil 4 Braze and evacuate according to indoor and outdoor installation instructions 5 Seal around refrigerant lines PAINTED AREAS OF UNIT M...

Page 10: ...e as well as any other cabinet penetrations must be sealed air tight I CONTROL WIRING 1 Connect wiring between indoor unit outdoor unit and Comfort Control The use of color coded low voltage wires is recommended 2 Field wiring diagrams are provided which show the low voltage wiring hook up for a single speed cooling only system with supplementary heaters and a heat pump system with supplementary h...

Page 11: ...18 GE09D1 9 11 Installer s Guide 2 4TEH AIR HANDLER WITH HEAT PUMP WITH SUPPLEMENTAL HEAT From Dwg B801082 Rev 2 ...

Page 12: ...12 18 GE09D1 9 Installer s Guide 2 4TEH AIR HANDLERS WITH SINGLE SPEED COOLING UNIT 1 STAGE HEAT From Dwg B801083 Rev 2 ...

Page 13: ...18 GE09D1 9 13 Installer s Guide 2 4TEH AIR HANDLER WITH SINGLE SPEED COOLING UNIT 2 STAGE HEAT From Dwg B801081 Rev 2 ...

Page 14: ...14 18 GE09D1 9 Installer s Guide OUTLINE DRAWING FOR 2 4TEH3F18 60B ...

Page 15: ...R HANDLER DIMENSIONAL DATA MODEL H W 2 4TEH3F18B 43 00 21 50 2 4TEH3F24B 43 00 21 50 2 4TEH3F30B 45 00 21 50 2 4TEH3F36B 45 00 21 50 2 4TEH3F42B 51 75 23 50 2 4TEH3F48B 57 90 23 50 2 4TEH3F60B 57 90 23 50 2 4TEH3F48B 60B Are two piece cabinets ...

Page 16: ...th code 3 Make sure unit suspension if used is secure and that there are no tools or loose debris in around or on top of the unit 4 Check all duct outlets they must be open and unrestricted 5 Check drain lines and be sure all joints are tight 6 Make sure secondary drain pan is installed 7 Check power supply for correct requirements per unit nameplate 8 Check filters for proper size Inform owner of...

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