Manitowoc RF1200W User manual

Manitowoc Ice
2110 South 26th Street, P.O. Box 1720, Manitowoc, WI 54221-1720 USA 000007058
Telephone [phone], Fax - Sales: 920-683-7589, Service/Parts: 920-683-7585, Other: 920-683-7879 Rev 01
Web Site - www.manitowocice.com
RF1200W Copper Water Piping Instructions
Tools Required:
Small cup or pail
Utility knife
Paper towel
Adjustable wrenches (2)
Braze rod
Torch
Flat blade screwdriver
Phillips screwdriver
Hammer
3/8” OD swaging tool
Tubing cutter
Deburring tool
Sharpie marker
Wet sponge/rag
Instructions:
1. Disconnect power, condenser supply/drain, potable water supply/drain
2. Remove front, top and RH panels. Remove rear grille
3. Loosen both hose clamps on condenser hoses. Remove hose from condenser outlet (top)
4. With cup/pail at the ready, remove hose from condenser inlet (bottom). Drain condenser and hose
5. Loosen both hose clamps on water regulating valve. Using utility knife, cut both hose ends to facilitate
hose removal from barbed fittings on valve
6. Remove both hoses and discard
7. Remove 2 screws from gray plastic drain manifold (some machines have brass winged adapter) on
back panel; discard manifold
8. Remove 2 screws from condenser inlet fitting on back panel; save screws. Tilt top of fitting toward
inside of machine and remove fitting and hose. Discard fitting and hose
9. Remove 2 screws from black plastic drain manifold on back panel; save screws. Temporarily move
black manifold w/hose attached to other side of gear motor
10. Disconnect wires from potable water solenoid valve, then remove 2 screws from solenoid valve on back
panel; save screws. IMPORTANT –Make sure solenoid valve hose is routed ABOVE the evaporator
water inlet hose
11. With adjustable wrenches, remove top barbed fitting from water regulating valve. Then slightly loosen
bottom barbed fitting. Remove 2 screws from water regulating valve bracket; discard screws. Remove
bottom barbed fitting. Discard barbed fittings and bracket
12. Clean residual Teflon tape from inside threads on water regulating valve
13. Install flat bracket from kit onto inner most square hole in back panel. Bracket must be on outside of
back panel
14. From kit, find two 3/8” brass adapters (Male BSPP x Female NPT) and two adapter seals. On 1st
adapter, apply Teflon tape to male BSPP threads. From outside of the machine, with Teflon taped end
1st, insert 1st adapter thru flat bracket. Thread on one adapter seal over Teflon taped end of 1st
adapter
15. Orient water regulating valve so flow arrow is pointing into machine. Thread 1st adapter into valve
inlet. Tighten adapter securely to valve
16. Apply Teflon tape to 2nd adapter and thread on 2nd adapter seal. Install into outlet of water regulating
valve. Tighten adapter securely to valve
17. Apply Teflon tape to NPT threaded end (not flared end) of 45brass elbow. Thread taped end into
adapter on water regulating valve outlet. Tighten elbow so 45flare is pointing to water condenser

Manitowoc Ice
2110 South 26th Street, P.O. Box 1720, Manitowoc, WI 54221-1720 USA 000007058
Telephone [phone], Fax - Sales: 920-683-7589, Service/Parts: 920-683-7585, Other: 920-683-7879 Rev 01
Web Site - www.manitowocice.com
18. Prepare for brazing by blowing residual water out of condenser to extent possible
19. Swage both water connections on condenser
20. From kit, find copper tube with flare nut. From front of machine, feed flare nut end of copper tube
between compressor and vertical white plastic ice tube to bottom condenser connection. Finger tighten
flare nut to 45elbow. Hold opposite tube end beside bottom condenser connection. Mark tube and
cut to length. Install tube end into swaged connection. Tighten flare nut securely to 45elbow
21. From kit, find copper tube with winged adapter. From back of machine, feed copper tube thru inner
most round hole in back panel to top condenser connection. Hold tube end beside top condenser
connection. Mark tube and cut to length. Install tube end into swaged connection. Fasten winged
adapter to back panel with 2 screws and nuts from kit; tighten securely
22. Apply wet sponge/rag as necessary to protect refrigeration lines and insulation. Braze two connections
on condenser
23. Feed solenoid valve into remaining square hole in back panel, install screws and tighten securely
24. Feed black plastic drain manifold into remaining round hole in back panel, install screws and tighten
securely
25. Install grille and panels
26. Connect power, condenser supply/drain, potable water supply/drain
27. Renumber water connections on back panel label from 1,2,3,4,5 to 2,1,4,3,5
BEFORE AFTER