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IX800 Operation & Service Manual
IX800 Ladder Diagram
208/230V
208/230V
3Ø
1Ø
L3
L1
L1
L2
L2
Fuse T5A
Constant 24VAC
Start Switch
NO
NO
4
2
Supply
R
(24VAC)
Air Pressure
P.Sw
Switch IN
Thermostat Signal
W
Input (24VAC)
Igniter
S1
Power OUT
L1
Flame Rod
F S
Signal
Valve Power
MV1
OUT (24VAC)
Burner
GND
Ground
Burner Motor
F2
Power OUT
F1
Ignition Controller
30
IX800 Ladder Diagram
Power Selector
Switch
3Ø
Fuse
T3.5A
1Ø
115V
115/230V
Power
Transformer
12/24V
1
AC120V
2
3
Stop Switch
4
NC (TH)
5
NC
Side Fan-Exchanger
RTD Controller
Switching 24VAC
Air Pressure Sw.
NO
2
COM
NC
Output Limit
3
Switch (resetable)
1
Igniter
AC120V
Power IN
2
Flame Rod
3
4
NC (BURNER)
5
Top Fan-Exchanger
RTD Controller
Burner Motor
Power IN
Tilt Switch
Fan Thermostat
(close above 85°F)
230V
30°C
Fan
Preheat
Standby Lamp
NC
12
4
6
NO (FAN)
7
8
RTD
NO
9
10
6
10
NO
11
7
CM
Jumper Plug
External
2
Thermostat
6
NO (FAN)
7
8
Gas Valve Solenoids
RTD
9
(24VAC)
10
24V
Burner Motor
Relay Coil
IX800 Rev 2.5
09/08/2021
VFD
Blower
U
M
R
V
S
W
T
M
Burner Motor
Relay Contact
Preheat Thermostat
(close above 35°F)
Preheat
0°C
Relay Coil 1
12
4
Preheating
Element 230V
NC
(2 PCS)
12
8
NO
9
5
NO
Preheat
Relay Coil 2
NO
2
1
P1
Timer
(ON after 12 min)
3
Power Logic
Relay Coil
1
0
X1
X2
Power ON Lamp
(Start Button)
Ignition
Transformer
Igniter
M
COM
COM
M
Key
F1
Ignition Controller
I2
Variable Frequency Drive
Relay Contacts
Relay Coil
P/N
974-4135
Motor
Burner
Motor
230V
230V
Rev: 2.51
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