LAARS Pennant PNCV (Sizes 200, 300, 400) - Install and Operating Manual - Manual (Page 25)

LAARS Heating Systems
Page 24 Pennant 200, 300, 400 Page 25
Figure 14. Wiring Schematic (Ladder Diagram).
L1 S1
IGN
CTRL
S2 L2
IGN
CTRL
120 VAC
CNTRL
C1
MV
TH
AIR FLOW
SWITCH
PSW
GAS VALVE 2
(IF EQUIPPED)
STAGE 2
GAS VALVE 1
STAGE 1
WATER FLOW
FLOW
SWITCH
OTHER
INTLKS
JMPR
F1 F2
IGN
CTRL
FUSE
120 VAC
24 VAC
BLOWER
PUMP
HOT
PUMP
NEU
PUMP
(IF EQUIPPED)
AIR FLOW
24V GND IGNITION BOARD
BAS
C1
BAS
NO1
MANUAL
RESET
HIGH LIMIT
LWCO
JMPR
LWCO
COM
LWCO
NO
(IF LWCO IS
SUPPLIED JMPR
REMOVED)
MAIN POWER
SWITCH
24V GND TEMP CONTROL
7 8 5 6
L1 L2
11 12
DRY ALARM
CONTACTS
3 4
CLASS 2 120/24VAC
50VA TRANSFORMER
COM
K2
CALL FOR HEAT
K2A
POWER ON
P1 P2
FUSIBLE LINK
(200 ONLY)
9 10
BLOCKED
VENT
SWITCH
TDR 1
24V
TDR 3
GND
TIME DELAY RLY
TDR 6
INITIATE
TDR 2
COM
TDR 4
NO
TIME DELAY RLY
POWER ON
IGNITOR
STAGE 2 INITIATE
(IF EQUIPPED)
THERMISTOR #1
THERMISTOR #2
LED
LED
REMOTE
LED
LED
HIGH LIMIT
LED
LED
LED
LED
LED
LOCAL
REMOTE
5
1 2
LOOP 2
CONTACTS
FAN PROVE
SWITCH
CNTRL
NO1
STAGE 1 INITIATE
IGN
CTRL
IGN
CTRL
IGN
CTRL
MAIN VALVE
CNTRL
C2
CNTRL
NO2
CNTRL
RT1+
CNTRL
RT1-
CNTRL
C3
CNTRL
RT2+
CNTRL
IND+
CNTRL
IND-
CNTRL
RT2-
CNTRL
INP+
CNTRL
INP-
CNTRL
NO3
CNTRL
C4
CNTRL
NO4