LAARS Mini-Therm JVS (Sizes 50-225) - Install and Operating Manual - Manual (Page 23)

Mini-Therm JV Page 23
Y
O
BR
IGNITION CONTROL
2nd STAGE ONLY
GAS VALVE
MV
MV/PV
PV
H
BK
TEMP CONTROL
3
5
PV
C
6
MV
BLOCKED
VENT
ROLLOUT
SW
BK BK BK
POWER VENTER
HI LIMIT
BL
1
DAMPER
R
2 4
GND R
R BK
N
JVS
BK
TEMP CONTROL
PUMP
5A MAX
TRANSFORMER
110 VAC
FUSE
2A
P
TEMP
CONTROL
TEMP
CONTROL
FAN
PROVING
ROLLOUT
SW
GAS VALVE
R
2 4
GND R
BL R
N
JVH
BK
TEMP CONTROL
BOILER
PUMP
TRANSFORMER
110V
110 VAC
FUSE
1
BR
INDUCER
FAN
TEMP CONTROL
CONTROL
RLY
CONTROL
RLY
24V
3 1
TEMP
CONTROL
HI LIMIT
GAS
VALVE
4
Figure 15B. JVS Ladder Diagram
Figure 15A. JVH Ladder Diagram
Figure 16. Main Burner/Pilot Flame Pattern.
0.50
(13)
JVH PILOT JVS PILOT
1.25
(32) 0.16
(4)
0.50
(13)
0.10 TO 0.35
(3 to 9)
1.25
(32) MAIN BURNER
FLAME PATTERN
MINIMUM FLAME
LENGTH
MINIMUM FLAME
LENGTH
Dimensions in
inches (mm).