8
ENGLISH
* Water supply pressure should be minimum 0.07 MPa (0.7 bar) and maximum 0.8 MPa (8 bar). If the pressure exceeds 0.8
MPa (8 bar), use a proper pressure reducing valve. Do NOT throttle back the supply tap.
* A plumbing permit and services of a licensed plumber may be required in some areas.
* The icemaker drain is gravity flow, so ensure drain hose has an adequate pitch or fall.
* Drain lines should not be installed directly to the sewer system. A vertical air gap of a minimum of 5
cm should be between the end of the drain hoses from the icemaker and storage bin and the floor
drain.
* Prevent a backflow into the storage bin.
* On water-cooled model, a back flow preventer may be required in
the cooling water circuit.
* Be sure to use the new hose-sets supplied with the appliance. Do
not reuse any old hose-sets.
[Air-Cooled Model]
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. It is a wise
precaution to have a stop valve within easy reach.
3) Hand tighten grey flexible outlet hose (accessory) onto the R3/4
fitting on the rear of the icemaker as indicated, ensuring rubber
washer is correctly positioned to obtain a leak free joint. The hose
can be cut to length as necessary to suit position of main drain.
[Water-Cooled Model]
* Hoshizaki recommends that the water-cooled condenser should be connected to a closed circuit
recirculating type cooling system utilizing a tower, water chiller or similar. Water make up should
be via a ball valve/break tank arrangement.
* Whilst connecting a water-cooled condenser to a mains water
(potable) supply will not affect the performance of the machine, it
will most certainly cause a high use/waste of a valuable resource
and is not recommended.
* The services of a licensed or coded plumber should be used to
ensure a correct installation.
* The connections should be made properly in compliance with the
applicable national or local regulations.
[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-240DW:
5235 W
* 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.
5cm air gap
Drain
Floor
Water Supply Inlet G3/4
Drain Outlet R3/4
Inlet Hose
Outlet Hose
Air-Cooled Model
Water Supply Tap
Inlet Hose
Potable Water
Inlet G3/4
Inlet Hose
Drain Outlet R3/4
Outlet Hose
Cooling Water
Inlet Rc1/2
Cooling Water
Outlet Rc1/2
1/2-3/4 Nipple
Condenser Cooling Circuit
Icemaker
Bin
Water-Cooled Model [a]