Hoshizaki IM-21CNE Bedienungsanleitung Seite 11

ENGLISH
[a] Standard connections according to WRAS regulations in U.K.
* When selecting a cooling tower, refer to the following peak values of heat flow in the condenser:
Model IM-30CW/45W:
IM-65W:
IM-100/130W:
IM-240W:
* Pipes between the cooling tower and the icemaker should be at least 20 mm DIA to reduce pressure loss, even though the
icemaker fittings are 13 mm DIA.
* Pressure loss in the water circuit inside the unit will be 5 to 6 m
when the cooling water flows at the ratio of 4 to 5 lit/min.
* Select a circulating pump referring to the above values of heat
flow.
* Do not use a cascade pump, or the water regulator will vary the
flow and stop it during the defrost cycle.
[Icemaker Connections]
1) Attach the angled end of flexible inlet hose (accessory) to the
G3/4 fitting on the rear of the icemaker as indicated, ensuring
rubber sealing washer is correctly positioned. Hand tighten
sufficiently to provide leak free joint.
2) Attach the other end of inlet hose to the water tap, noting
washer is correctly positioned before hand tightening as above.
Note: If filtration or treatment is used, ensure icemaker section
only is on treated water supply, not the condenser.
3) Attach grey flexible outlet hose (accessory) to the R3/4 fitting
on the rear of the icemaker as indicated, confirming fitment of
rubber washer before finally hand tightening the joint. The hose
can be cut to length as necessary to suit position of main drain.
4) By means of a suitable spanner or wrench, tighten the 1/2-3/4
nipples (accessory) into the Rc1/2 fittings on the rear of the
icemaker as indicated. P.T.F.E. tape and/or a suitable sealing
compound should be used to obtain a leak free joint.
Note: Jointing compounds should be approved and suitable for
potable water use.
5) Connect the condenser cooling circuit to the free end of 1/2-3/4
nipples as indicated using a suitable rigid type pipe.
[b] Connections according to regulations other than WRAS by utilising accessory hoses
1) Follow the instructions from 1) to 4) in [a] above.
2) For condenser connections, use supplied accessory hoses and make the same connections as 1) to 3) in [a] above to the free
end of 1/2-3/4 nipples as indicated.
295 - 760W
875W
1165W
5235W
Water-Cooled Model [a]
Potable Water
Inlet G3/4
Inlet Hose
1/2-3/4 Nipple
Outlet Hose
Flow Control Valve
Icemaker
Strainer
8
Drain Outlet R3/4
Cooling Water
Inlet Rc1/2
Cooling Water
Outlet Rc1/2
Condenser Cooling Circuit
Cooling
Tower
P
Pump