Groen CC20-E Operator's Manual page 108

CC10-G
Sequence Of Events
Prior to Serial Number GC7243MS
6. K13 de-energized. (Fill)
7. K11 and K12 de-energized. (High and Low Air)
8. K3 de-energized. K2 remains energized. (High and Low Boiler)
9. K14 energized. (Condensate Spray)
10. K12 and K11 energize.
11. K11 and K12 de-energize.
12. K11 and K12 cycle.
Oven Mode (Prior to Serial Number GC7243MS)
Refer to the Oven mode circuit diagram on page 4-18 and/or the schematic
diagram on page 4-19 for the following sequence of events.
1. Relay K6 energized. Fan motor turns on.
2. Relay K12 energized allowing gas valve S2 to open.
3. Approximately 3 seconds after SV2 opens, relay K11 energizes allowing gas
valve SV1 to open. Air burners turn on.
4. When oven temperature reaches the temperature set point, relays K11,
and K12 de-energize causing gas valves SV1 and SV2 to close. Air burners
turn off.
5. Relays and valves K11, K12, SV1 and SV2 will cycle on and off to maintain the
oven set point.
Relay Operation Summary
1. K6 energized. (Fan)
2. K12 energized. (Low Air)
3. K11 energized. (High Air)
4. K11 and K12 de-energized. (High and Low Air)
5. K11 and K12 cycle on and off
Cleaning Cycle (Prior to Serial Number GC7243MS)
Refer to the schematic diagram on page 4-19 for the following sequence of events.
1. CL:45 is displayed in the time display window.
2. Relay K15 energized. Drain valve closes and boiler fills.
3. (Electronics after GC7243MS) Relay K9 energizes momentarily and then K10
energizes and K9 de-energizes. K9 and K10 alternate until the boiler is full.
4. Relay K6 energized. Fan motor turns on.
4-6
(Revised 1/02)