Honeywell S8910U - Page 10

69-0845—2
10
S8910U UNIVERSAL HOT SURFACE IGNITION MODULE
Fig. 4. Typical hookup when S8910U replaces Robertshaw HS780.
MV
MV
L1
(HOT)
L2
1
3
2
1
2
3
4
4
5
6
COMBINATION
GAS CONTROL
S8910U HOT SURFACE IGNITER CONTROL
HOT
SURFACE
IGNITER
FLAME
SENSOR
LIMIT
CONTROLLER
THERMOSTAT OR
CONTROLLER
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
MAKE SURE L1 AND L2 ARE NOT REVERSED.
ALTERNATE LIMIT CONTROLLER LOCATION.
SENSE ROD WILL BE PRESENT IF REMOTE SENSE HS780 MODEL. SEE TABLE 3.
WHEN HS780 IS A REMOTE SENSE MODEL, REMOVE JUMPER QUICK-CONNECT FROM S8910U. CUT WIRE AT CIRCUIT
BOARD AND DISCARD. CONNECT FLAME ROD LEAD WIRE TO SENSE. SEE TABLE 2.
CUT 1/4 IN. QUICK-CONNECT OFF WIRE AND REPLACE WITH 3/16 IN. QUICK-CONNECT (SUPPLIED).
USE GREEN GROUND ADAPTER (SUPPLIED) TO CONNECT S8910U GND (BURNER) TO APPLIANCE CHASSIS.
BURNER
GROUND
M8529B
AU
TO IGN
ITION
SYSTEM
S
ANSI Z21
.20
STATUS LED:
1. Flash-Ignition Lockout
2 Flash-Weak Flame Signal
3 Flash-Internal Error-Replace Control
Pulsing "Heartbeat"-Normal Operation
S8910U HOT SURFACE IGNITIO
N
INPUT VOLTAGES = 120 & 24 VAC, 60HZ
HSI = 120V, 6.5A MAX
VALVE = 24V, 1A MAX TOTAL 24V LOAD = 0.2 + VALVE LOAD
120VAC
HOT
570A0056
WARNING
!
Explosion hazard. Can cause
serious injury or death.
This device can malfunction if
it gets wet. Never try to use a
device that has been wet -- replace it.
GND
(BURNER)
24V
(GND)
VALVE
(GND)
24V
LED
L2
HSI
L1
HSI
SENSE
VALVE
MPLS., MN 55422
SEE
INSTRUCTIONS
FOR REM
OTE
SENSE/DUAL
ROD
A
PPLICA
TIONS
TRIA
L TIME,
NUM
. OF TRIALS
CONFIGURA
TION
PLUG
120VAC
NEUTRAL
Prepurge Time = 30 Sec
Igniter Warmup Time = 34 sec
5
6
4
HS780
TR (GND CLIP)
GND
—
TH
VALVE
L2
L1
IGN
IGN
RS
4
4
TERMINAL CROSS
REFERENCE
S8910U
GND(BURNER)
24V (GND)
VALVE (GND)
24V
VALVE
L2
L1
HSI
HSI
SENSE
6