Groen CC20-E Operator's Manual page 42

CC20-E
Sequence Of Events
Prior to Serial Number C7439MS
8. When oven temperature reaches the temperature set point, relays K11 and
R11 de-energize. Air heating elements turn off.
Relay Operation Summary
1. K15 and K13 energized. (Drain and Fill)
2. K6 and R1 energized. (Fan)
3. K2, K3, R2, and R3 energized. (Water Heat)
4. K13 de-energized. (Fill)
5. K2, K3, R2, and R3 de-energized. K14 energized. (Water Heat)
6. K11, K12, R11, and R12 energized. (Air Heat)
7. K12 and R12 de-energized. K11 and R11 remain energized. (Low Air Heat)
8. K11 and R12 de-energized. (Air Heat)
Two Stage Cleaning Cycle (Prior to Serial Number C7439MS)
Refer to the schematic diagrams on page 3-34 for the following sequence of
events.
Phase 1
1. Press 9-9 on the touch pad. C1 is displayed in the TIME display window.
Spray degreaser around the cavity and press "START." CL:50 is displayed in
the time display window.
2. Relays K15 and K13 energize. Drain valve closes and boiler fill valve opens.
Boiler fills.
3. Relay K6 and mercury relay R1 energize. Fan motor turns on.
4. Relays K2, K3, R2, and R3 energize. Water heating elements turn on.
5. When water temperature is approximately 150°F, relays K2, K3, R2, and R3
de-energize.
6. Relays K2, K3, R2, and R3 energize and water heating elements turn on.
7. Relay K14 energizes and condensate spray valve opens.
8. Relay K15 de-energizes. Drain valve opens and boiler drains.
9. Relays K2, K3, R2, and R3 de-energize and water heating elements turn off.
10. Relay K14 de-energizes and condensate spray valve closes. C2 is displayed
in the TIME display window. Beeper sounds.
3-10
(Revised 1/02)