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
4. Factory Stacked Units
This section is applicable only if you are installing
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.
7
