I&O Manual - EVCA - Categories On Thermal Solutions Products LLC
I&O Manual - EVCA - Categories On Thermal Solutions Products LLC
I&O Manual - EVCA - Categories On Thermal Solutions Products LLC
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GND TO<br />
CHASSIS<br />
G<br />
G<br />
Q7800H1009 INTERNAL WIRING<br />
P<br />
120V-1PH-60HZ<br />
SEE FIGURES 9a&9b FOR<br />
SUPPLY POWER WIRING<br />
L2<br />
L1<br />
FUSE<br />
2<br />
2<br />
2<br />
K3<br />
29<br />
3<br />
1<br />
ALARM SILENCE<br />
PUSH BUTTON<br />
2<br />
30<br />
3<br />
4<br />
SENSE<br />
ALARM RELAY K2<br />
K2<br />
LINE VOLTAGE ALARM<br />
K1<br />
K1<br />
SENSE<br />
LOW WATER CUTOFF<br />
SENSE<br />
BURNER ON/OFF<br />
SWITCH<br />
11<br />
10<br />
10<br />
11<br />
12<br />
13<br />
BURNER<br />
THERMAL FUSE<br />
OPTIONAL<br />
SEE NOTE 3<br />
VESTIBULE<br />
THERMAL FUSE<br />
3<br />
5<br />
MM 750-<br />
MT-120<br />
LOW WATER<br />
CUTOFF<br />
OPTION<br />
(SEE NOTE 1)<br />
BURNER ON/OFF SWITCH<br />
ALARM BELL<br />
TO VSD<br />
TERMS.<br />
1&2<br />
(2)<br />
(1)<br />
31<br />
32<br />
33<br />
34<br />
35<br />
36<br />
37<br />
38<br />
39<br />
40<br />
K5<br />
K5<br />
K3<br />
K4<br />
4<br />
5<br />
6<br />
21<br />
7<br />
K3<br />
BLOWER MOTOR<br />
K5<br />
AUXILIARY RELAY<br />
K4<br />
SENSE<br />
WATER FLOW SWITCH<br />
SENSE<br />
GAS PRESS SWITCHES<br />
SENSE<br />
HIGH LIMIT<br />
SENSE<br />
COMBUSTION AIR<br />
FLOW<br />
9<br />
8<br />
7<br />
6<br />
14<br />
15<br />
16<br />
17<br />
18<br />
19<br />
20<br />
21<br />
22<br />
23<br />
NC<br />
HIGH<br />
C<br />
HIGH LIMIT<br />
NC C<br />
MANUAL<br />
NO<br />
NO<br />
LOW<br />
C<br />
C<br />
OPERATING LIMIT<br />
NC<br />
C<br />
AUTO<br />
WATER FLOW SWITCH<br />
HIGH AND LOW GAS<br />
PRESSURE SWITCHES<br />
HIGH LIMIT AND OPERATING<br />
TEMPERATURE SWITCHES<br />
UNUSED OPERATING LIMIT<br />
COMBUSTION AIR FLOW<br />
SWITCH<br />
41<br />
24<br />
NO<br />
C<br />
PUMP MOTOR STARTER<br />
AND OVERLOAD RELAY<br />
BLOCKED AIR FILTER<br />
SWITCH AND LIGHT<br />
115V TO 24V<br />
TRANSFORMER<br />
A2 A1<br />
M<br />
96 95<br />
LT<br />
NO<br />
115V TO 24V<br />
TRANSFORMER<br />
DRY CONTACTS<br />
FOR BOILER<br />
STATUS<br />
INDICATION<br />
BOILER PUMP<br />
5 CRA3 9<br />
GND TO<br />
CHASSIS<br />
C<br />
OUTLET<br />
SENSOR<br />
INLET<br />
SENSOR<br />
PROG. SPARE OUTPUT<br />
(COLD AIR DAMPER,<br />
SYSTEM PUMP BACKUP<br />
OR ALARM)<br />
43<br />
44<br />
45<br />
46<br />
3<br />
2<br />
3<br />
2<br />
3<br />
3<br />
47<br />
48<br />
49<br />
2<br />
50<br />
K6<br />
K2<br />
9<br />
5<br />
9<br />
8<br />
K6<br />
SENSE<br />
MAIN FUEL VALVE<br />
10 28<br />
G<br />
F<br />
20<br />
13<br />
CRA<br />
14<br />
1<br />
MAIN FUEL<br />
VALVE(S)<br />
HONEYWELL Q7800H<br />
FLAME SAFEGUARD SUBBASE<br />
AND<br />
PROGRAMMER CONTROL<br />
RM7896D 1027<br />
BO<br />
BC<br />
BI<br />
C<br />
C<br />
C<br />
SO<br />
C<br />
PR<br />
24VAC +<br />
K1<br />
THERMAL SOLUTIONS<br />
BOILER CONTROL<br />
(TSBC)<br />
24VAC -<br />
FUSE<br />
24VAC +<br />
5<br />
CALL FOR<br />
HEAT<br />
24VAC - 2<br />
Pin 6<br />
CA HL GP WF<br />
OO V- V+ P- P+<br />
Pin 1<br />
Pin 7<br />
Pin 1<br />
12<br />
3<br />
11<br />
10<br />
9<br />
8<br />
7<br />
6<br />
5<br />
4<br />
1<br />
AL<br />
CS<br />
25<br />
26<br />
2<br />
42<br />
27<br />
2<br />
2<br />
10<br />
9<br />
8<br />
7<br />
6<br />
5<br />
4<br />
3<br />
2<br />
1<br />
LC<br />
PRIMARY SECONDARY<br />
GAS RATIO GAS<br />
ACTUATOR VALVE<br />
L<br />
E/H<br />
N<br />
L<br />
N<br />
GND TO<br />
CHASSIS<br />
VARIABLE<br />
SPEED DRIVE<br />
AC Tech SCF<br />
1<br />
2<br />
5<br />
12<br />
2<br />
2<br />
VENT VALVE<br />
(OPTIONAL)<br />
INTERRUPTED<br />
IGNITION PILOT<br />
GAS VALVE<br />
UV SCANNER<br />
IGNITION XFMR<br />
IGNITION PILOT<br />
COMBUSTION BLOWER<br />
SPEED CONTROL<br />
CIRCUIT<br />
(38)<br />
(37)<br />
TO K3<br />
RELAY ON<br />
FLAMESAFEGUARD<br />
SUBBASE<br />
TERM. 37 & 38<br />
Figure 9d: Ladder Wiring Diagram (<strong>EVCA</strong>-750/2000)<br />
SYSTEM PUMP<br />
9<br />
5<br />
13 14<br />
CRA<br />
2<br />
13 14<br />
CRA<br />
3<br />
SP<br />
BP<br />
12 VDC<br />
0.5A MAX TOTAL<br />
FOR SO, SP, BP,<br />
V1, & LO<br />
CH<br />
O+<br />
O+<br />
O-<br />
O-<br />
OUTSIDE AIR<br />
SENSOR<br />
OUTSIDE AIR<br />
RESET OPTION<br />
MIXING VALVE<br />
ACTUATOR<br />
1 2 3<br />
LINE TYPES:<br />
SPARE<br />
LOCKOUT INDICATOR<br />
FACTORY WIRING, LINE VOLTAGE<br />
FACTORY WIRING, LOW VOLTAGE (SEE NOTE 2)<br />
FACTORY WIRING, SPECIAL IGNITER<br />
FIELD WIRING, LINE VOLTAGE<br />
CONTROL RELAY OPTIONS<br />
9<br />
5<br />
9<br />
5<br />
13<br />
CRA<br />
14<br />
4<br />
13<br />
CRA<br />
14<br />
5<br />
REMOTE CONTROL<br />
OR<br />
REMOTE SETPOINT<br />
0-10 VDC INPUT<br />
(VALID INPUT SIGNAL RANGE IS 1-9VDC)<br />
SEE NOTE 6<br />
VI<br />
LO<br />
MS<br />
MR<br />
C-<br />
C+<br />
RJ11<br />
R1<br />
500 ohm<br />
4-20 mA DC<br />
CONVERTED TO<br />
2-10 VDC<br />
12 VDC<br />
(FIELD SUPPLIED<br />
CONTACTS/SWITCHES)<br />
R+<br />
R+<br />
R-<br />
R-<br />
DP<br />
LR<br />
RO<br />
C<br />
SI<br />
C<br />
1<br />
4<br />
LOCAL<br />
2<br />
3<br />
REMOTE<br />
REMOTE SYSTEM<br />
SENSOR<br />
DOMESTIC HOT WATER PRIORITY<br />
LOCAL/REMOTE(REMOTE CONTROL OR REMOTE SETPOINT)<br />
REMOTE ON/OFF(ENABLE/DISABLE)<br />
SEE NOTE 5<br />
SPARE INPUT<br />
FIELD WIRING, LOW VOLTAGE<br />
GND TO<br />
CHASSIS<br />
RJ45<br />
OPTIONAL WIRING<br />
28
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