Carrier 48TJD Specifications download pdf (Page 15)

Step 12 -- Install All Accessories-- Install all

field-installed accessories. Refer to the accessoly installation

instructions included with each accessory.

MOTORMASTER® I CONTROL INSTALLATION

(48TJ016,020 UNITS)

Install Field-Fabricated Wind Baffles -- Wind baffles must

be field-fabricated for all units to ensure proper cooling cycle

operation at low ambient temperatures. See Fig. 21 for baffle

details. Use 20-gage, galvanized sheet metal, or similar

conosion-resistant metal for baffles. Use field-supplied screws

to attach baffles to unit. Screws should be 1/4-in. diameter and

5/8-in. long. Drill required screw holes for mounting baffles.

To avoid dmnage to the refiigemnt coils and electric_d com-

ponents, use recommended screw sizes only. Use care

when drilling holes.

) MIN

BAFFLE TOP VIEW 1" (25) MIN--_

78.12" -+0.125"

0984 -+3)

.j \

3/4"(19)0-¥P)--'_

BAFFLE FRONT VIEW

NOTE: Dimensions in ( ) are in mm.

I 10" (254)

_..]--" _¥p)

-- 40"

' 1016

_10" (254)

+"-- = ffYP)

""-'--I 15" (381)

-4i----,i 1_ (TYP)

_"_ "1" (25) MIN

Fig. 21 -- Wind Baffle Details

Install Motormaster [ Controls -- Only one Motormaster I

control is required per unit. The Motormaster I control must be

used in conjunction with the Accessory 0° F Ix_w Ambient Kit

(purchased separately). The Motormaster [ device controls out-

door fan no. 1 while outdoor fans no. 2 and 3 are sequenced off

by the Accessory 0° F Low Ambient Kit.

Accessoiw 0 ° F Din' Ambient Kit -- Inst_dl the Accessory 0° F

Ix_w Ambient Kit per instruction supplied with accessory.

Sensor Assembly -- Install the sensor assembly in the location

shown in Fig. 25_

Motor Mount- To ensure proper fan height, replace the exist-

ing motor mount with the new motor mount provided with

accessory.

Tran._fiwmer (460 and 575-v Units On@) -- On 460 and 575-v

units, a transhmner is required. The transformer is provided

with the accessory and must be field-installed.

Motormaswr I Control -- Recommended mounting location is

on the inside of the panel to the left of the control box. The

control should be mounted on the inside of the panel, verti-

cally, with leads protruding from bottom of extrusion.

SENSOR

LOCATION

_Oo

_:tOo°

_:toO°

_:to°

_o°

_:_o°

_$o°

_o°

_:to°

€:to°

_o°

_1_oo°

_:_o°

_o°

_oOO°

HAIRPIN END

48TJ016

_o°

SENSOR _ ,_ o

LOCATION _ o

_o°

HAIRPIN END

48TJ020

NOTE: All sensors are located on the eighth hairpin up from the

bottom.

Fig. 22 -- Motormaster I Sensor Locations

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 55 56

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Carrier 48TJD Specifications Page 15

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