Carrier Air Conditioner Manual

A SERVICE OF

next previous

45

Cooling Set Point (4 to 20 mA) —

A field supplied

and generated, externally powered 4 to 20 mA signal can be

used to provide the leaving fluid temperature set point. Connect

the signal to TB6-3,5 (+,–). See Table 27 for instructions to

enable the function. Figure 22 shows how the 4 to 20 mA sig-

nal is linearly calculated on an overall 10 F to 80 F range for

fluid types (Configuration mode, sub-mode OPT1, item

FLUD) 1 or 2.

Table 27 — Menu Configuration of 4 to 20 mA Cooling Set Point Control

MODE

(RED LED)

KEYPAD

ENTRY

SUB-MODE

KEYPAD

ENTRY

ITEM DISPLAY

ITEM

EXPANSION

COMMENT

CONFIGURATION

DISP

UNIT

OPT1

OPT2

RSET

SLCT CLSP 0 COOLING SETPOINT SELECT

0 Scrolling Stops

0 Flashing ‘0’

4Select ‘4’

4 Change Accepted

ENTER

ENTER

ENTER

ENTER

ENTER

Fig. 22 — Cooling Set Point (4 to 20 mA)

EMM —

Energy Management Module

100

(38)

80

(27)

60

(15)

40

(4.4)

20

(-7)

0

(-17)

4 6.3 8.6 10.9 13.1 15.4 17.7 20

4 TO 20 mA SIGNAL TO EMM

SET POINT, F (C)