Thermal Solutions EVS SERIES Installation, Operating And Service Instructions page 30

GND TO
CHASSIS
120V-1PH-60HZ
SEE FIG. 9A-9B FOR
SUPPLY POWER WIRING
ALARM SILENCE
PUSH BUTTON
ALARM BELL
(2)
TO VSD
TERMS.
(1)
1&2
BOILER
STATUS
LT
BLOCKED AIR FILTER
NO C
SWITCH AND LIGHT
115V TO 24V
TRANSFORMER
GND TO
CHASSIS
OUTLET
SENSOR
INLET
SENSOR
(COLD AIR DAMPER,
SYSTEM PUMP BACKUP
OR ALARM)
SYSTEM PUMP
SPARE
LOCKOUT INDICATOR
CONTROL RELAY OPTIONS
LINE TYPES:
FACTORY WIRING, LINE VOLTAGE
FACTORY WIRING, LOW VOLTAGE (SEE NOTE 2)
FACTORY WIRING, SPECIAL IGNITER
FIELD WIRING, LINE VOLTAGE
FIELD WIRING, LOW VOLTAGE
OPTIONAL WIRING
Figure 9d: Standard UL/FM/CSD-1 Wiring Diagram (EVS500-2000)
Q7800H1009 INTERNAL WIRING
G G
L2 2
FUSE
L1
K3
29
2
4 K1
SENSE
ALARM RELAY K2
LOW WATER CUTOFF
3 K2
LINE VOLTAGE ALARM
30 BURNER ON/OFF
31
4 K3
BLOWER MOTOR
K5
32
WATER FLOW SWITCH
33
5
34
GAS PRESS SWITCHES
35 K5
K5
36
HIGH LIMIT
AUXILIARY RELAY
37
K3
38 6
21 K4
39
COMBUSTION AIR
K4
40
7
41
K6
43
MAIN FUEL VALVE
44
9
MAIN FUEL
45
VALVE(S)
K6
46
3
2 8
3
2
10
3
3
47 G
K2
48
49
2
HONEYWELL Q7800H
FLAME SAFEGUARD SUBBASE
50
AND
PROGRAMMER CONTROL
RM7896D 1027
24VAC -
24VAC +
CONTROLLER
C
FUSE
PR
BC
BO
BI
C
C
C
9
13 14
CRA
SO
1
5
9
13 14
CRA
SP
2
12 VDC
5
0.5A MAX TOTAL
FOR SO, SP, BP,
V1, & LO
BP
9
13 14
CRA
VI
3
5
9
13 14
CRA
LO
4
5
MS
MR
REMOTE CONTROL
OR C-
REMOTE SETPOINT
C+
0-10 VDC INPUT
(VALID INPUT SIGNAL RANGE IS 1-9VDC)
RJ11
GND TO
CHASSIS
30
2
3
10
BURNER
K1
VESTIBULE
THERMAL FUSE
THERMAL FUSE
OPTIONAL
11
SENSE
11
12
10
SENSE
13
SWITCH
14
9
SENSE
15
NO
16
8
HIGH
SENSE
17
NC C NO
18
7
HIGH LIMIT OPERATING LIMIT
SENSE
19
NC
NC
C
20
21
22
6
SENSE
FLOW
23
NO
24
PRIMARY SECONDARY
GAS RATIO
25 GAS
5
ACTUATOR VALVE
SENSE
L L
26
E/H
2
N N
GND TO
42
CHASSIS
27
2
28
2
12
K1 3
11
CALL FOR
10
HEAT
9
Pin 7 8
7
6
5
Pin 1 4
2
1
SAGE
24VAC - AL
CS
24VAC +
10
9
8
7
Pin 6
6
CA HL GP WF
OO V- V+ P- P+ 5
4
Pin 1
3
2
1
LC
CH
O+
O+
OUTSIDE AIR
SENSOR
O-
O-
R+
R+
R-
R-
DOMESTIC HOT WATER PRIORITY
DP
LR
LOCAL/REMOTE(REMOTE CONTROL OR REMOTE SETPOINT)
12 VDC
RO
REMOTE ON/OFF(ENABLE/DISABLE)
1 2
(FIELD SUPPLIED
REMOVE JUMPER BETWEEN RO & C
4 3
CONTACTS/SWITCHES)
WHEN SWITCH OPTION IS USED.
LOCAL REMOTE
PN: 102535-01
C
SI
SPARE INPUT
C
RJ45
GR
P
2
1
MM 750-
3
MT-120
LOW WATER
CUTOFF
OPTION
5
(SEE NOTE 1)
BURNER ON/OFF SWITCH
WATER FLOW SWITCH
C
HIGH AND LOW GAS
LOW
PRESSURE SWITCHES
C
HIGH LIMIT AND OPERATING
TEMPERATURE SWITCHES
C
UNUSED OPERATING LIMIT
COMBUSTION AIR FLOW
SWITCH
C
VENT VALVE
(OPTIONAL)
INTERRUPTED
IGNITION PILOT
GAS VALVE
IGNITION XFMR
GND XFMR
TO PILOT
IGNITION PILOT
UV SCANNER
COMBUSTION BLOWER
SPEED CONTROL
CIRCUIT
VARIABLE
SPEED DRIVE
AC Tech SCF
1 (38)
2
TO K3
RELAY ON
5
FLAMESAFEGUARD
12
SUBBASE
TERM. 37 & 38
2
2 (37)
OUTSIDE AIR
RESET OPTION
REMOTE SYSTEM
SENSOR