Carrier 50EJQ Información técnica descargar pdf (Pagina 21)

Base and Expansion Board Modules — Table 44

is a map of the type of input and output for each channel and

corresponding terminal for both the base module as well as

the expansion module. Tables 45, 46, 47, and 48 indicate the

channel functions for the CV, heat pump, VAV, an d expan-

sion board, respectively. Tables 49 and 50 show the DIP switch

assignments for the control board.

Field Test — The ﬁeld test program is initiated by mov-

ing DIP switch no. 4 to the ON position. The ﬁeld test

sequence will start. The ﬁrst sequence will close the outdoor-

air damper. The control allows 90 seconds for the damper to

close in case it is in the full open position. Next, the indoor

fan contactor is energized and the outside air damper begins

to open to its default value of 20%and stays at that position

for a short period of time. The outdoor-air damper will then

open to its full open position and again stay at that position

for a short period of time. Then the outdoor-air damper will

then close.

If the unit is equipped with power exhaust, stage 1 will be

energized for 5 seconds. If the unit is conﬁgured for stage

two of power exhaust, it will be energized for 5 seconds af-

ter the ﬁrst stage is deenergized.

The next step will energize the ﬁrst stage of heat for

30 seconds, after which time the second stage heat will be

energized for an additional 30 seconds. Heat is then

deenergized.

The last step will run the Cooling mode. Outdoor fan

contactor no. 1 is energized. This is followed by each stage

of cooling energized with a 10 second delay between stages.

Next outdoor fan contactor no. 2 is energized for

10 seconds.

The compressors will now deenergize followed by the out-

door fan contactors and indoor fan contactors. If the unit is

equipped with the Integrated Gas Control (IGC) board, the

indoor fan will continue to operate for an additional 30 sec-

onds after deenergizing the circuit.

The ﬁeld test is complete.

Factory Test (Software Version 1.0 Only) — A

factory test (with DIP switch no. 8) was used only with Ver-

sion 1.0 software.

The Factory Test DIP switch should not be enabled in

the ﬁeld.

The factory/operational test is manually executed using a

Personal Computer program that reads inputs and control out-

puts via CCN communications. Before the test is run, the

unit will be placed in Factory Test mode by turning DIP

switch no. 8 to the Test position. As the switch is put into the

test position, all outputs will be turned off. The DDC will

now be ready to receive test commands from CCN. When

the factory test mode is initiated, a one-hour timeout timer

will be started by the DDC to prevent the unit from remain-

ing in that mode for more than one hour.

The factory test mode will be turned off when switch 8is

switched off or when the one hour timer expires, which-

ever comes ﬁrst. The factory test has been eliminated in Soft-

ware Version 2.0 and 3.0.

Table 44 — Input/Output Points

CHANNEL NO.

(TERMINALS)

INPUT TYPE OUTPUT TYPE

CHANNEL NO.

(TERMINALS)

INPUT TYPE OUTPUT TYPE

1 (T17-T25) 24 Volt — 18 (T28-T29) — 24 or 115 Volt

2 (T18-T25) 24 Volt — 19 (T30-T29) — 24 or 115 Volt

3 (T19-T25) 24 Volt — 20 (T31-T32) — 24 or 115 Volt

4 (T20-T25) 24 Volt — 21 (T33-T32) — 24 or 115 Volt

5 (T21-T25) 24 Volt — 22 (T34-T35) — 24 or 115 Volt

6 (T22-T25) 24 Volt — 23 (T36-T35) — 24 or 115 Volt

7 (T23-T25) 24 Volt — 24 (T37-T38) — 24 or 115 Volt

8 (T24-T25) 24 Volt — 25 (T39-T38) — 24 or 115 Volt

9 (T1-T2) 10K Resistor — 26 (K1, N.O.) — SAME AS K1, COM

10 (T3-T4) 5 or 10K Resistor — (K1, N.C.) — SAME AS K1, COM

11 (T5-T6) 5K Resistor — (K1, COM) 24, 115 or 230 Volt —

12 (T7-T8) 5K Resistor — 27 (K2, N.O) — SAME AS K2, COM

13 (T9-T10) Resistor (TBD) — (K2, N.C.) — SAME AS K2, COM

14 (T11-T12) 4-20mA — (K2, COM) 24, 115 or 230 Volt —

15 (T13-T14) 4-20mA — 28 (K3, N.O.) — SAME AS K3, COM

16 (T15-T16) 4-20mA — (K3, N.C.) — SAME AS K3, COM

17 (T26-T27) — 4-20mA (K3, COM) 24, 115 or 230 Volt —

NOTE: For terminals witha4to20mAsignal, odd numbered terminals are (+), even terminals are (−).

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 43 44

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