7
Fig 1
RELAY SUBSTITUTION DIP-SWITCHES
Switch SW1
All furnaces are factory supplied with all switches set to the off position
The relay dipswitch is located on the main control board
• SW1selections will select relay to be disabled and the new relay to be
enabled.
• SW2 positions 1 and 2 labeled MOD will select modulation options.
DO NOT CHANGESWITCH POSITIONS 3 to 6.
In the tables below a switch ON is represented by a value “1” while a switch OFF
is represented by a value “0”.
The following tables highlight valid selection for each furnace size
Switch
Old
New
Position
Relay
Relay
Two Element Furnace
0100
1
3
1100
1
4
0010
1
5
1010
1
6
0110
2
3
1110
2
4
0001
2
5
1001
2
6
0101
3
4
1101
3
5
0011
3
6
1011
4
5
0111
4
6
Summary of Contents for ALPHA
Page 9: ...9 Fig 2 MAIN CONTROL BOARD ...
Page 11: ...11 Fig 4 ...
