SP715A fits 780-715

REPLACING : Sp715 /
Sp715A / USI715U / Sp735 / Sp735A /
Sp745

1. Turn OFF all electrical power to the appliance being serviced.
2. Remove the old ignition control unit, but leave the wires
connected at this time.
3. Install the new Universal Ignition Control Module in the same
location as the old one.
4. Locate the 'grey or white plug' assembled to the SENSOR
terminal. Remove it and discard. It is no longer required.
5. Remove one wire at a time from the old l.C.U. Reconnect it to
the same terminal on the new Universal l.C.U. Example: PV to
PV.
6. The wiring and installation of the new ignition module is now
compete.
7. Restore electrical power to the appliance being serviced.
Proceed as directed in SYSTEM CHECKOUT PROCEDURES
section.

JOHNSON CONTrOLS

The Robertshaw 780-001 (nonlockout), 780-002 (lockout) and
780-003 (lockout with prepurge) Universal Replacement Module
Uni-Kit ® is designed to replace the Johnson Controls Spark Ignition
System Modules listed on pages 5 and 6. The 780-002 kit must be
used whenever a Johnson Controls Y79 Series lockout module is
present on the system being serviced.
The 780-001 and 780-002 Uni-Kit replaces only the existing
control module, while utilizing the existing Johnson gas valve,
pilot sensor and ignitor. The Uni-Kit includes a special mounting
bracket for mounting the new module onto the existing gas
valve. A special wiring adaptor, (included with the Uni-Kit) is used
whenever the existing system includes a Johnson Controls M15/
Y15 Series Vent Damper.

STep I - IdeNTIFyINg yOUr JOHNSON
CONTrOLS MOdULe
1. Locate the Johnson Controls part number on the existing
module.
2. Find this number in the cross-reference list (pages 5 and 6) to
determine which wiring diagram to use.
Refer to Wiring
Diagram Number

3. Over the years Johnson Controls has gone through many
different model variations of ignition control units. Along
with the many different models, Johnson Controls has
also had dozens of different wiring combinations for these
controls.
We have provided for you what we feel are the most accurate
wiring schematic(s) that we can. If you encounter problems with
your wiring, Robertshaw I.C.U. terminals and their functions are
listed below:
TH = 24 volt signal from wall thermostat
PV = Pilot valve - pilot gas only
MV = Main valve - main burner gas
SENSOR = Flame sensor (2 rod system)
ACCESSORY TERM E3 = Not used
MV/PV = Common return for MV and PV (grounded)
TR = Transformer common (grounded)
GND. = Ground
IGNITOR = Spark electrode lead wire