Specified Controls SC-Z20 - Page 5

SC-Z20 PANEL LAYOUT
1
2
3
4
5
6
7
8
9
10
1112
13
14
15
17
18
16
ZONE 13 ZONE 12 ZONE 11 ZONE 10 ZONE 9 ZONE 8 ZONE 7 ZONE 6 ZONE 5 ZONE 4 ZONE 3 ZONE 2
ZONE 1
R
C
Y
W
R
C
Y
W
R
C
Y
W
R
C
Y
W
R
C
Y
W
R
C
Y
W
R
C
Y
W
R
C
Y
W
R
C
Y
W
R
C
Y
W
R
C
Y
W
R
C
Y
W
R
C
Y
W
R
C
Y
W
R
C
Y
W
R
C
Y
W
R
C
Y
W
R
C
Y
W
R
C
Y
W
R
C
Y
W
ZONE 20 ZONE 19 ZONE 18 ZONE 17 ZONE 16 ZONE 15 ZONE 14 24VAC
R
C
NOT USED
R
C
T
T
NS
NS
E
E
DAS
DAS
O/B
G
Y1
Y2
W1
W2
RH
RC
HVAC SYSTEM
1 AMP
1 AMP
1 AMP
SPARE SYSTEM RH
SYSTEM RC
RH-RC
JUMPER
O/B
G
Y1
Y2
W1
W2
COOL
HEAT
COOL
HEAT
COOL
HEAT
COOL
HEAT
COOL
HEAT
COOL
HEAT
COOL
HEAT
COOL
HEAT
COOL
HEAT
COOL
HEAT
COOL
HEAT
COOL
HEAT
COOL
HEAT
COOL
HEAT
COOL
HEAT
COOL
HEAT
COOL
HEAT
COOL
HEAT
COOL
HEAT
COOL
HEAT
4 AMP
PC BOARD
HP HC SYSTEM
B O REV VALVE
3 ZONES OFF MINIMUM
2 ZONES OFF CALLS
ON OFF
ECONO
SPEED
UP
MODE
STATUS HEAT COOL
DAS ACTIVE
OCCUPIED
HEAT
AUTO
COOL
CLOCK
POWER
CLOCK
CONTACTS
NIGHT
STAT
1. 24 VOLT SYSTEM POWER TERMINALS
2. ZONE TERMINALS 14-20
3. 24 VOLT POWER TERMINALS FOR OPTIONAL TIME CLOCK
4. TIME CLOCK CONTACT TERMINALS (REMOVE FACTORY JUMPER
WHEN WIRING CLOCK CONTACTS. N.C. = OCCUPIED MODE)
5. NIGHT THERMOSTAT TERMINALS
6. ECONOMIZER TERMINALS
(CONTACTS CLOSED IN OCCUPIED MODE)
7. DISCHARGE AIR SENSOR TERMINALS
8. HVAC SYSTEM TERMINALS
9. RH-RC JUMPER
10. 1 AMP HVAC CONTROL SYSTEM FUSES
11. 1 AMP SPARE FUSE
12. SYSTEM SET-UP SLIDE SWITCHES
13. TIME DELAY SPEED UP BUTTON
14. HEAT/AUTO/COOL SELECTOR SWITCH
15. MICROPROCESSOR STATUS LED
16. HEAT/COOL MODE STATUS LEDs
17. ZONE TERMINALS 1-13
18. 4 AMP PC BOARD FUSE