27
2). The water supply should have a minimum flow pressure of 35-psi (2.4 kg/cm²) and a maximum
static pressure of 60-psi (4.1 kg/cm²). If the static pressure is above 60 psi, a pressure regulator
must be used set at approximately 50 psi. Pressure above 60 psi can damage the solenoid
valves.
3). The Gemini Steamers are supplied with two connection points for incoming water, one feeds
the condensers and the second supplies feed water to the generators. If the local water supply
is of poor quality (see Chapter 2, Section 6, Part a.1 for details of water quality), it is
recommended that treated or otherwise filtered or conditioned water be used to supply the feed
water to the generators. In the case of using a separate water supply, use the layout shown in
Figure 2-14.
4). Pay attention to the following requirements and recommendations when connecting the
steamer to the water supply:
a)
Cleveland Range recommends the plumbing layout illustrated in either Figure 2-13, for
installations using a single water supply or Figure 2-14 if a separate conditioned water
supply is being used for boiler feed. Note: If using a single water feed to the system the
supply piping to the tee fitting should be of at least the next largest size of pipe to the
connection provided at the steamer.
b)
The steamer has IPS fittings for the water connections to the generator and to the
condenser. These fittings are detailed as
D
and
E
in spec sheet, depending on model.
c)
Install a manual water valve between the main cold-water supply line(s) and the steamer
supply lines.
d)
This steamer must be installed with adequate backflow prevention in all supply lines, to
comply with federal, state or local codes having jurisdiction.
e)
The water supply line(s) should be designed so that the unit can be moved for service.
Gemini
Condenser Solenoids
Steam Generator
Solenoids
Water Connection D on
Dimension Diagram
Check Valve
Air/Water Column
(if required)
Standard Cold
Water Supply Flow
Water Connection E on
Dimension Diagram
Pressure Reducer
Main Water
(if required)
Shut Off Valve
Conditioned Cold Flow
Water Supply
Figure 2-14 Cleveland Range Single Water Supply Arrangement when Using
Separate Conditioned Feed Water Supply
Gemini
Steam Generator
Solenoids
Condenser Solenoids
Water Connection D on
Dimension Diagram
Air/Water Column
(if required)
Check Valve
Main Cold
Flow
Water Supply
Water Connection E on
Dimension Diagram
Pressure Reducer
(if required)
Main Water
Shut Off Valve
Figure 2-13 Cleveland Range Single Water Supply Arrangement
[
*
Installed internal on all Gemini models]
