VHX SERIES STEAMER - ELECTRICAL OPERATION
LED | STATUS | DESCRIPTION | ELECTRICAL COMPONENTS CONDITION | ||
|
| ||||
ON | OFF | ||||
|
|
| |||
|
|
|
|
| |
N1 | X |
| same as “state A” |
| |
|
|
|
|
| |
N2 | X |
| same as "state B" |
| |
|
|
|
|
| |
N3 | X |
| same as “state A” |
| |
|
|
|
|
| |
N4 | X |
| same as "state B |
| |
|
|
|
|
| |
N5 | X |
| Reset switch is/was momentarily | K3 energized - K3(1) CLOSE (locking circuit) | |
| energized | ||||
|
|
|
| ||
|
|
|
|
| |
N6 |
| X | Aux Water level is satisfied. | K3 energized - K3(1) OPEN | |
| (Amber WATER light OFF) | ||||
|
|
|
| ||
|
|
|
|
| |
N7 | X |
| Reset switch is/was momentarily | K4 energized - K4(1) CLOSE (locking circuit) | |
| energized | ||||
|
|
|
| ||
|
|
|
|
| |
N8 |
| X | High Limit is satisfied. | K4 energized - K4(1) OPEN | |
| (Amber HIGH PRESS OFF) | ||||
|
|
|
| ||
|
|
|
|
| |
N9 | X |
| same as “state A” |
| |
|
|
|
|
| |
N10 | X |
| High limit is satisfied and reset | K3(2) CLOSE | |
| switch energized | ||||
|
|
|
| ||
|
|
|
|
| |
N11 | X |
| Aux Water level is satisfied and | K4(2) CLOSE, K5 energized | |
| reset switch energized | ||||
|
|
|
| ||
|
|
|
|
| |
N12 | X |
| Air intake blower receiving power | K5(1) CLOSE | |
|
|
|
|
| |
|
| ||||
|
|
|
|
| |
Air Pressure Switch Satisfied: (STATE D)
Assume water level control “LLCO” is satisfied (LLCO contacts closed)
N1 thru N12 same as “Reset Engaged: (state C)"
LED | STATUS | DESCRIPTION | ELECTRICAL COMPONENTS CONDITION | ||
|
| ||||
ON | OFF | ||||
|
|
| |||
|
|
|
|
| |
N13 | X |
| Air pressure switch satisfied | 24V to ignition module (term 6) | |
|
|
|
|
| |
N14 | X |
| Ignition module PV coil energized | PV CLOSE, 24V to K7 | |
|
|
|
|
| |
|
|
| Pilot gas valve is energized. | K7 energized K7(1) CLOSE, relay board timer | |
N15 | X |
| Note: N15 and the pilot gas valve will | circuit energized and starts time count. K6 | |
| be ON for approximately 15 seconds, | energized K6(1) CLOSE, pilot gas valve coil | |||
|
|
| |||
|
|
| then turn OFF. | energized for 15 sec. only. | |
|
|
|
|
| |
N16 | X |
| Ignition module PV coil energized, | MV CLOSE, 24V to water level board LLCO | |
| pilot ignition flame is detected | contacts | |||
|
|
| |||
|
|
|
|
| |
|
|
| Water level board LLCO is satisfied | Main gas valve coil energized, main burner | |
N17 | X |
| and main gas valve is receiving | ||
| lights and flame continues to be detected. | ||||
|
|
| power. | ||
|
|
|
| ||
|
|
|
|
| |
Burner ON, Boiler Heating to generate steam: (STATE E)
All LED’s ON except N6 & N8, N15 (still OFF from state D)
Burner OFF, Boiler Pressure Satisfied: (STATE F)
These LED’s should be OFF - N6, N8, N9, , N10, N11, N12, N13, N14, N15 (still OFF from state D) N16 & N17 These LED’s should be ON - N1 thru N5, N7
Page 45 of 68 |
| F24700 (October 2001) |
|
