Groen CC20-E Operator's Manual page 304

Maintenance
Replacement Procedures
Bottom Boiler on Double Stacked Units
[(2)CC10-G and (2)CC20-G]
Removal
(continued)
5. Shut off oven water supply.
6. Remove two rear, top base-to-bottom, 1/4-20 mounting screws.
These screws are located in the right and left rear corners of the top
base.
7. For units with a (2) piece flue, remove the (2) screws and remove the
flue section. (Skip to step 16.)
8. In the bottom unit, loosen the top cover front mounting screws (10-32
slotted head screws).
9. Support weight of top oven by putting a 2 X 6 board on a jack and
placing them next to the rear column at rear of oven.
10. Remove two 10-32 slotted head screws, and one 10-32 flat head
screw and nut from rear of top cover.
11. Raise the top unit approximately three inches (3") using the 2 X 6 and
jack arrangement described in step 8 above.
12. Remove all water hoses.
13. Disconnect electrical wiring as necessary for rear column removal.
Remove rear column.
After Serial #GC14501 or old ovens that have had the new boiler
kit installed, remove left leg of boiler and then skip to step 16.
14. Place a 2 X 6 board inside the base, at the right rear side of oven, to
support the top unit as shown in this illustration. This board replaces
the rear column during boiler removal.
Use a 34" long board for the CC10-G and a 37" long board for the
CC20-G oven.
15. Remove the 2 X 6 and jack used in step 8 above.
16. Remove gas supply pipe, boiler manifold (see page 8-52), pilot
burner (see page 8-53), oven manifold (see page 8-56), and pilot
runner tube (see page 8-57).
17. Remove drain valve and hose (see page 8-29).
18. Remove "tunnel" flue (horizontal piece) from bottom unit. Remove
from rear of unit. It will be necessary to pull insulation from right side
to gain access to one of the two flue mounting screws.
19. Remove boiler mounting screws and remove boiler from the oven.
20. Inspect pilot runner tube for water deposits (see illustration). Clean
tube if necessary.
8-60
NOTE
(Revised 1/02)