S 8 61 0U UNIVERSAL INTERM ITTEN T P H O T MODULE
Table 4. Conversion from Robertshaw SP715 and SP735C to S8610U1003 (Includes 780-XXX and USI715U).
Terminal Function
Replacement
Control
Old Control SP715 and SP735
(includes 780-XXX and USI 715U)c>d
Procedural Notes
Honeywell
S8610U1003 7000D Valve 7100D Valve 7100K Valve
Main valve operator MV MV
(to: Valve TH)
MV
(to: Valve M)
MV
(to: Valve TR)
—
Main valve and pilot
common
MV/PV MV/PV
(to: Valve TR)
MV/PV
(to: Valve C)
PV
(to: Valve C and TH)
—
Pilot valve operator PV PV
(to: Valve
PILOT)*
PV
(to: Valve P)
PV
(to: Valve PICK &
HOLD)
*This is the terminal not
jumpered to TR.
Burner ground
connection
GND
(BURNER)
GND GND GND
—
Transformer
secondary
(unswitched leg)
24V GND TR TR TR
—
24V No connection No
connection
No connection
—
Transfomer
secondary
(switched leg)
E3a E3a
E3a
When supplied, E3
provides connection to
Lockout Timer.
TH-W TH TH TH If LO-15 is part of the
installation, use the
wire disconnected from
E1 tagged Thermostat.
Flame sensor
SENSEb SENSEe SENSEe SENSEe
—
Pilot igniter SPARK IGN IGN IGN
—
1. Use existing wiring harness to make connections to S8610 per table. IMPORTANT: If installation includes LO-15
Lockout Timer, discard wires to E3 and TH. Disconnect and retain wire to LO-15 terminal E1. Tag wire,Thermostat.
Discard LO-15.
2. On 7000D series valve, retain (or install) white jumper between valve TR and pilot solenoid.
a If LO-15 Lockout timer is not installed, E3 connector provided on SP715 is not used.
b Important: If the USI 715U with combination igniter sensor is not used, remove black jumper quick connect from
Sense terminal of S8610U1003. Cut jumper wire at circuit board and discard.
c For replacement of Robertshaw Flame Switch systems (SP710, 720, 730, 750, 780-700, 780-701,780-710, 780-711,
780-712 and 780-713), see Honeywell Ignition Control Handbook.
d 780-715 and USI 715U are equivalent to SP715; 780-735 and 780-737 are equivalent to SP735. For other 780-XXX
models, see notec.
e OPT. SENSOR on USI 715U. No external connection if combination igniter sensor is used.
69-0729—3 6
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