John Wood Commercial - 300-400K BTU - Manual (Page 63)

63
diagrams
ccb - central control board layout
1 Retry
Use Yes
Type Tstat
Spare
Ext
Input
3
Retries
No
Vent
Spare
OP
EN
1
2
3
4
3
2
1
6
5
4
9
8
7
12
11
10
15
14
13
J6
J7
3 2 4 1
1
2
J15
8 4
5
6
7
1
2
3
J13
3
4
1
2
J10
1
3
5
2
4
J1
1
3
4
2
J2
1
4
2 1
2
J3
J5
J4
S1 DIPSWITCH
J16
J9
J11
S1 DIPSWITCH DETAIL
CCB (CENTRAL CONTROL BOARD)
1 Retry
Use Yes
Type Tstat
Spare
Ext
Input
3
Retries
No
Vent
Spare
OP
EN
1
2
3
4
Dipswitch Operation:
Along one side of the dipswitch array there are numbers, 1-4. On the other side of the dipswitch
is the word “OPEN.” The dipswitches are rocker type switches, if one side of the rocker is down the
other side will be up. Pressing a rocker down on the side of the array labeled “OPEN,” opens the switch.
Pressing a rocker down on the side of the array labeled with the numbers 1-4 closes the dipswitch.
CHANGING NUMBER OF IGNITION TRIALS BEFORE LOCK OUT
NOTE: Always turn off power to the water heater before changing dipswitch settings.
Set dipswitch #4 to the open position for 1 trial for ignition before Ignition Failure lock out. Set dipswitch
#4 to the closed position for 3 trials for ignition before Ignition Failure lock out.
figure 61