Unified Brands HYPERSTEAM (2)HY-5G - Manual (Page 7)

OM-HY-5G
7
After the unit has been connected to the gas
supply, all gas joints must be checked for leaks.
No flame should be used when checking for
leaks. A thick soap solution or other suitable
leak detector should be used.
For a unit on casters, complete connection to the
gas supply with connectors that comply with the
standard for connectors for moveable gas
appliances, ANSI Z21.69 — latest edition.
Restrain movement of the unit by attaching a
cable or chain to the eyelet (provided at the back
of the frame) and anchoring the cable or chain to
the wall or floor. Make the length and location of
the cable such that the unit cannot pull on the
gas connection while the cable is connected.
2. Water Connection(s)
Install a check valve to prevent back flow in the
incoming cold water line, as required by local
plumbing codes. Water pressure in the line
should be between 30 and 60 PSIG and must
deliver a flow rate of 1.5 to 3.0 gallons per
minute. If pressure is above 60 PSIG, a
pressure regulator will be needed.
¾ inch female NH connectors (garden hose
type) are used to attach the water supply to the
inlet valves. One connector is for the steam
generator (treated), the other is for the spray
condenser (untreated). Minimum inside
diameter of the water feed line is ½ inch. Use
a washer in the hose connection. Do not allow
the connection to leak, no matter how slowly. Do
not over tighten hose connections. Treated
(softened) water goes to the right (seen from the
rear of the unit), and untreated water to the left.
Connections for both are made as shown on
Page 5. Though not recommended, an adapter
to use a single water intake is available, P/N
138473.
3. Drain Connection
Level the steamer front to back, or pitch it slightly
to the rear (maximum ¼ inch) by adjusting the
optional legs or bullet feet on optional stand.
A 2 inch ID hose may be attached to the drain
pipe (supplied).
WARNING:
DO NOT CONNECT THE DRAIN DIRECTLY TO A
BUILDING DRAIN. BLOCKING THE DRAIN IS
HAZARDOUS.
There must be a free air gap between the end of the
hose and the building drain. The free air gap should
be as close as possible to the unit drain. There must
also be no other elbows or other restrictions between
the unit drain and the free air gap.
CAUTION
DO NOT USE PLASTIC PIPE. DRAIN MUST BE
RATED FOR VERY HOT WATER.
Install the drain line with a constant downward pitch.
IMPORTANT: Do not allow water traps in the
line. A trap can cause pressure build-up in the
cavity, which may cause the door gasket to leak.
4. Factory Stacked Units
This section is applicable only if you are installing
factory-stacked units. If you plan to stack steamers
yourself, whether purchasing a new one for stacking
or a kit to stack two units you already own, you will
require OM-HY-5G(S), RETROFIT SUPPLEMENT
(Part Number 121087).
Installing stacked steamers is similar to installing a
single unit. The steamers are stacked and
assembled at the factory and delivered with the
water connections and drain hoses required for a
single point connection.
A. Water Connection
The same water supply connection is used for
both units. At the water inlet valves, ¾ inch
female NH connectors (garden hose type) are
used for the water supplies. There are two
connections to be made. Treated water
(softened) is connected to the right valve fitting
(looking from the rear of the unit) and untreated
water to the left fitting.
B. Electrical Supply Connection
Separate, individual electrical connections
will be required for each steamer in the stack.
Each Steamer must have its own branch
circuit protection.
C. Gas Connection
Separate gas connections are required for each
steamer in the stack. Gas supply must be
adequate under all conditions as listed on
page 6.