Carrier 38ED User Manual download pdf (Page 2)

4'-0" OVERHEAD SPACE REQUIRED

FOR SERVICE AND AIRFLOW

Table 1 — Physical Data (Refer to Fig. 1)

l-t DIAM HOLE

FOR POWER

WIRING

LIQUID VALVE SERVICE PORT

CONDENSER AIRFLOW

1-6 AIRFLOW

AND SERVICE

.CLEARANCE

SUCTION VALVE SERVICE PORT

♦CONCRETE PAD SHOULD WEIGH TO 2 TIMES WEIGHT OF UNIT

Certified dimension drawings are available upon request

Fig. 1 — Dimensions. Connections and

Mounting Pad (Refer to Table 1)

When evaporator is more than 2 sizes larger than

condensing unit (i.e. 38ED018I28HQ036), remove

AccuRater and use a bleed-type thermal expansion

valve (TXV) for refrigerant control. Size TXV to

nominal capacity of condensing unit.

Replace piston, only if required (Table 2), before

connecting refrigerant lines. Piston replacement in

structions are included in evaporator installation

book. After system installation is complete, use

Charging Chart to check and/or adjust refrigerant

charge.

MODEL 38ED

018

024 030

036

042 048 060

OPER WT (lb)

167 190

190

223*

246

248

278

DIMENSIONS

Diameter A

Unit Height B

2-5%

2-2'%( 2-8% ¡3-1%

3-2«/„

2-8% ( 3-2Vb4

CONNECTIONS {in )

Suction (ODF)*

Liquid (ODF)*

3/4

3/8

REFRIG LINES (in )

Suction (ODF)

Liquid (ODF)

3/4 1'/e*

3/s

*For a IVs-in suction line on 38ED036,042,048,060, a %-in x IVs-in

suction valve connection adapter is available as an accessory See Table 3

Table 2 — Optimization Chart

(Outdoor air design temperature, db-F.

100 F and beiow)

MODEL

ACCURATER™ PISTON NO

Evap Size (Coil or Fan Coil)

018

024 030

036

042-

048

060

28AR062

018

TXV

— — —

024

—

^63

TXV

— — —

030

-- —

TXV

—

036

—

TXV

—

042

—

— —

W№

TXV

048

___

— —

■ 84 S

■i:-:-v86

060

- -

—

Factory-supplied piston Obtain replacement pistons thru local

Carrier distributor

Fig. 2 — AccuRater (Bypass Type)

Components

Condensing Units Connected to Carrier-Approved

Evaporators — Condensing Units contain correct

system refrigerant charge for operation with evap

orator of the same size when connected by 25 ft or

less of field-supplied or Carrier accessory tubing.

Check refrigerant charge for maximum efficiency

(see Refrigerant Charging, page 6).

Step 2 — Make Piping Connections — Con

densing units may be connected to evaporator sec

tions using Carrier accessory tubing package (Table

3) or field-supplied tubing of refrigerant grade,

correct size and condition (Table 1). For tubing

requirements beyond 50 ft, obtain information from

local Carrier distributor.

1 2 3 4 5 6 7 ... 11 12

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Carrier 38ED User Manual Page 2

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