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.

 

100

 

 

 

 

 

 

 

 

(38)

 

 

 

 

 

 

 

 

80

 

 

 

 

 

 

 

 

(27)

 

 

 

 

 

 

 

(C)

60

 

 

 

 

 

 

 

(15)

 

 

 

 

 

 

 

POINT, F

40

 

 

 

 

 

 

 

SET

 

 

 

 

 

 

 

(4.4)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

 

 

 

 

 

 

 

 

(-7)

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

(-17)

6.3

8.6

10.9

13.1

15.4

17.7

20

 

4

4 TO 20 mA SIGNAL TO EMM

EMM — Energy Management Module

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

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

MODE

KEYPAD

SUB-MODE

KEYPAD

ITEM

DISPLAY

ITEM

COMMENT

(RED LED)

ENTRY

ENTRY

EXPANSION

 

 

 

 

CONFIGURATION

ENTER

DISP

 

 

 

 

 

 

 

 

 

 

 

 

 

UNIT

 

 

 

 

 

 

 

OPT1

 

 

 

 

 

 

 

OPT2

 

 

 

 

 

 

 

RSET

 

 

 

 

 

 

 

SLCT

ENTER

CLSP

0

COOLING SETPOINT SELECT

 

 

 

 

 

 

 

 

ENTER

 

0

 

Scrolling Stops

 

 

 

 

 

 

 

 

 

ENTER

 

0

 

Flashing ‘0’

 

 

 

 

 

 

 

 

 

 

 

4

 

Select ‘4’

 

 

 

ENTER

 

4

 

Change Accepted

 

 

 

 

 

 

45

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Image 45
Carrier Air Conditioner specifications RED LED Entry Expansion Configuration

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