10
7800 SERIES CONVERSION WIRING DIAGRAM
FROM__________________________ TO ____________________
(DEVICE TO BE MODERNIZED) (O.S. NUMBER OF RELAY MODULE TO BE USED)
12
Q7800
13
14
15
16
18
17
19
20
21
22
G
L2
9
8
7
6
5
4
3
10
F
S1
2
4
3
5
S2
FIREYE UVM
TFM
M - SERIES II
RM7895
M6015
2 3
64
7
8
5
A
B
C
SELECT PROPER RELAY MODULE PER CROSS
REFERRENCE TABLE.
INSTALL THE LINE VOLTAGE AIRFLOW SWITCH
BETWEEN Q7800 SUBBASE TERMINALS 6 AND 7.
ON THE CONTROL BEING REPLACED, THE
AIRFLOW SWITCH MAY HAVE BEEN INSTALLED
BETWEEN THE BLOWER OUTPUT TERMINAL (8)
AND THE AIRFLOW SWITCH INPUT TERMINAL (6).
IF THE CONTROL IS A UVM -1 OR TFM -1 AND THE
APPLICATION HAS AN EXTERNAL PURGE TIMER
AND/OR AN EXTERNAL INTERRUPTED PILOT
RELAY, THEN CONVERT TO RM7895. OTHERWISE,
CONVERT THE UVM -1 OR TFM -1 CONTROL TO
RM7890:
• REMOVE THE EXTERNAL PURGE TIMER
AND/OR INTERRUPTED PILOT RELAY.
• SELECT A PURGE CARD THAT MATCHES THE
TIMING OF THE EXTERNAL PURGE TIMER.
• SELECT RELAY MODULE:
• RM7895A - INTERMITTENT PILOT WITHOUT
AIRFLOW SWITCH CHECK.
• RM7895B - INTERMITTENT PILOT WITH
AIRFLOW SWITCH CHECK.
• RM7895C - INTERRUPTED PILOT WITHOUT
AIRFOLW SWITCH CHECK.
• RM7895D - INTERRUPTED PILOT WITH
AIRFLOW SWITCH CHECK.
GENERAL FOOTNOTES, SEE PAGE 4.
A
4
6
12
9
10
12
2
7
8
10
(L1)
A
B
1
13
C
8
1
4
B
13
6
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