Preferred JC-22D2 - Page 11

SDI-JC-22D2 rev. 11-1-21 page 11 of 22
Wiring Diagrams Sheet 3 of 3
Feedforward, Adj. Start, Miscellaneous Wiring
Burner Firing Rate Signal Types
(choose one), required for the Feedforward Option
52
56
57
+
Low Fire
High Fire
Potentiometer Signal
0.15 – 2.29 Vdc
Low Voltage DC
Do not run in Conduits with AC.
Connect Shields only where shown.
Potentiometer Spec:
500 - 10,000 ohms
linkage to burner
Model SPS or equal
+2.5 VHi Fire
-Low Fire
JC-22D2
56
57
+
4-20mA Signal
+
-
-
Firing Rate
4-20 mA Output
from
Burner Controls
(Order Separately) 100k
56
57
+
0-5V or 0-10V Signal
(or any 2V min. span)
+
-
-
Firing Rate
Voltage Output
from
Burner Controls
Miscellaneous Optional Wiring
41
L1
2
1
44
N
ROUT 1 C
ROUT 1 NO
Alarm
Horn
24 Vdc Remote
Alarm Silence
Pushbutton
DC DIN 1
-
RS485
Isolated
A +
B
-
Isolated
Common
45
47
49
ORG
BLU
WHT
ORG
BLU
WHT
Belden 3106A
or equal
JC-22D2
JC-22D2
Adjustable Starting Draft Sequence Option Wiring
7
AC DIN 1
Low Fire
Proving Switches
Purge
Proving Switches
Draft Purge Interlock
(required by Code)
Fireye
E100/E110
Honeywell
RM7800L
Fireye
YB110
Made from
90% to 100% Open.
Draft Damper
Position Switches
Draft Adjustable Start Interlock
(required by Code)
JC-22D2
12
11
Adj. Start
Relay
Made from the
Adj. Start position
up to 100% Open.
SM-x and UM-x servos
include (2) aux. switches
 All wiring on Sheet 1 is also required
 All wiring on Sheet 2 for Command: Triac / Feedback: Pot is also required
 A signal indicating when the burner is at the Purge Position is required.
There are 3 options, choose one: Burner Firing Rate Signal (above), AC DIN 1, or DC DIN 2.
46
33
DC DIN 2
-
Compatible with RM7800L or YB110 (NOT allowed for E100/E110)
24 Vdc Purge position limit switch
M
D
8
D
M
8
18
5
19
120 Vac Purge position signal
L1
14
120 Vac
Fuel 2 FF Curve Select
Fuel 2
Feedforward Curve
Select