Lennox International Inc 021, 505 Typical Installation Horizontal Air Handler shown, Indoor, Unit

Models: 021 505

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Typical Installation (Horizontal Air Handler shown)

Typical Installation (Horizontal Air Handler shown)

Electrical Inlet

To Charge Compensator side connection (some applications)

Check/Flow Restrictor to Vapor Line Tee

Liquid Line to

Indoor TXV

Liquid Line From Outdoor Unit

EDA UNIT

AIR

FLOW

air−flow

Check/Flow-

 

Restrictor

TEFLON SEAL

Details

CHECK/FLOW

RESTRICTOR

 

AND O−RING

 

FITTING IN

 

EDA UNIT

IMPORTANT!

RESTRICTOR MUST BE INSERTED WITH O−RING

END OF RESTRICTOR TOWARD EDA UNIT FITTING.

TORQUE CHATLEFF CONNECTION TO 20 FT. LBS.

MUST BE INSULATED

TXV Liquid

 

Line

System without

INDOOR

 

 

compensator

UNIT

 

 

1/4" PORT MUST

 

 

 

 

BE BRAZED

 

 

CLOSED

Vapor

 

 

EDA

Liquid Line from

Outdoor Unit

Liquid Line to

Indoor TXV

MUST BE

INSULATED

ELECTRICAL

INLET

TO CHARGE

COMPENSATOR SIDE

CONNECTION

CHECK/FLOW

RESTRICTOR TO

VAPOR LINE TEE

LIQUID LINE

TO INDOOR

TXV

2 ft. max.

Line

NO CHARGE

COMPENSATOR

OR 1/4" LINE

OUTDOOR

UNIT

Vapor

Line

Liquid

Line

Charge

Compensator

Details

USE REDUCER(S) FROM

 

CHARGE COMPENSATOR KIT

VAPOR LINE FROM

(WHEN REQUIRED)

INDOOR COIL

 

 

 

 

DROP TO CHARGE

 

 

 

USE REDUCER(S)

 

 

 

COMPENSATOR

 

 

 

FROM CHARGE

 

 

 

 

 

VAPOR LINE

7/8 X 7/8 X

 

 

COMPENSATOR KIT

 

 

 

 

 

 

 

 

 

 

 

 

3/8 TEE

 

 

(WHEN REQUIRED)

 

 

 

 

 

FROM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTDOOR

 

 

 

 

LIQUID LINE FROM

 

 

UNIT

CHARGE

 

 

 

 

 

 

 

COMPENSATOR

 

 

 

OUTDOOR UNIT

 

 

 

 

VAPOR

 

 

 

 

 

 

 

 

 

6 ft. max.

 

 

 

 

 

LINE

 

 

 

 

 

 

 

FROM

 

CHARGE

BETWEEN CHARGE

 

 

 

 

 

INDOOR

1/4" TUBING

COMPENSATOR

COMPENSATOR AND EDA USING

 

COIL

 

 

CONNECTION −

 

1/4" LINE PROVIDED IN CHARGE

 

 

 

1/4" TUBING

 

MUST BE ON

 

COMPENSATOR KIT

 

 

 

 

 

 

 

 

 

 

 

BOTTOM OF

 

 

 

 

 

CONNECTION − MUST

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COMPENSATOR

 

 

 

 

TO CHECK/FLOW

BE AT LOWEST POINT

 

 

 

 

 

 

 

 

 

 

 

RESTRICTOR ON EDA

OF THE COMPENSATOR

 

 

USE REDUCER(S)

 

 

 

 

 

 

 

 

 

 

FROM CHARGE

 

 

 

 

 

 

 

 

 

 

COMPENSATOR KIT

TYPICAL HORIZONTAL POSITION INSTALLATION

 

TO CHECK/FLOW

(WHEN REQUIRED)

 

RESTRICTOR ON EDA

 

7/8 X 7/8 X

VAPOR LINE FROM

OUTDOOR UNIT

3/8 TEE

 

UPFLOW POSITION

Figure 5

Page 7

EDA INSTALLATION/ SERVICE INSTRUCTIONS

Page 7
Image 7
Lennox International Inc 021, 505 Typical Installation Horizontal Air Handler shown, Indoor, Outdoor Unit, Check/Flow