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3.1.8 - Aquasnap Basic Board
This board is used on global chiller as slave board for air cooled units with reclaim option or cooler heater option.
It contains 8 Discrete Inputs (switch type), 10 Digital Outputs (8 triacs and 2 relays), 6 Analog Inputs (four 5K or
10K thermistors and two active pressure transducer types) and 1 analog output (0-10 Vdc).
Cooler heater option, condenser and cooler
refrigerant isolation solenoid circuit B
Relay output
DO_10
25
Cooler heater option, condenser and cooler
refrigerant isolation solenoid circuit A
Relay output
DO_9
24
Cooler heater output
Triac
DO 8
23
unused
Triac
DO_7
22
Reclaim option, pumpdown solenoids circuit B
Triac
DO 6
21
Reclaim option, pumpdown solenoids circuit A
Triac
DO_5
20
Reclaim option, condenser heater
Triac
DO 4
19
unused
Triac
DO 3
18
reclaim option or cooler heater option, circuit B,
refrigerant condenser entering solenoid
Triac
DO_2
4
17
reclaim option or cooler heater option, circuit A,
refrigerant condenser entering solenoid
Triac
DO_1
3
0
unused
Relay input
DI’s
08 to 15
Reclaim option, condenser water valve
0 - 10 Vdc
AO_1
07
Reclaim option pumpdown pressure circuit B
Pressure transducer 0 - 5 Vdc
AI 6
06
Reclaim option pumpdown pressure circuit A
Pressure transducer 0 - 5 Vdc
AI_5
05
unused
Thermistor 5K or 10K
AI 3
03, 04
Reclaim option entering temperature
Thermistor 5K or 10K
AI 2
02
Reclaim option leaving temperature
Thermistor 5K or 10K
AI_1
01
FUNCTION
Type
I/O
Channel Number
CARRIER SA
USER'S GUIDE FOR
30GX&HX PRO_DIALOG 4 V.2
ECG-UG-02-002
Rev: original
Page: 16/98
©
C
ARRIER
S
.
A
NOT
TO
BE
DISCLOSED
TO
PERSONS
OUTSIDE
CARRIER
ORGANIZATION
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