Unified Brands HY-6G(CE) service manual Drain Connection, Initial Start-Up, OM/SM-HY-6GCE

Install a WRAS approved double-check valve or an equally effective backflow preventive device in the incoming cold water line at the point of connnection(s) to the steamer and in compliance with all local plumbing codes. This installation must be per WRAS-IRN R160 Schedule 2-15(1). For units with the dual water connection option, a double-check valve shall be installed on each water line.

Do not allow the connection to have any leak, regardless of how small.

4.5 Drain Connection

The HY-6G (CE)Steamer must be leveled front to back. A 38mm (1½ inch) ID hose may be attached to the drain pipe (supplied) by means of a hose. DO NOT

CONNECT THE HOSE DIRECTLY TO A BUILDING DRAIN. 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. THE DRAIN MUST WITHSTAND HOT WATER.

Install the drain line with a constant downward pitch.

IMPORTANT: Do not allow any water traps in the line. A trap can cause pressure to build up inside the cavity during steaming, which will make the door gasket leak.

Leave an air gap between the hose and the building drain, and don’t allow water traps in the hose.

4.6 Initial Start-Up

After the HY-6G(CE) Steamer has been installed, test it to ensure that the unit is operating correctly.

4.6.1Remove all literature and packing materials from the interior and exterior of the unit.

4.6.2Make sure the water supply line is open.

4.6.3Make sure that the gas supply line is open and that the manual knob on the main gas valve is turned to the “on” position. This valve is located behind the front access panel on the right side of the unit.

4.6.4Turn on electrical service to the unit. The HY-6G(CE) will not operate without electrical power. Do not attempt to operate the unit during a power failure.

4.6.5The steamer will not operate until the pilot burner has been ignited. To light the pilot burner, activate the pilot switch located at the lower front, next to the main gas valve. When the pilot ignition sequence has been successful, a green light on the pilot switch will glow.

4.6.6The “trial for ignition” period is roughly 90 seconds. If the pilot burner does not light within about 90 seconds after the switch is activated, the ignition system automatically stops gas flow to the pilot burner and stops the ignition trial. If this happens, turn off the pilot switch and repeat the trial for ignition.

During the initial start-up, the pilot may require several trials for ignition until all the air is bled from the gas piping. Subsequent start-ups should require only about 5 seconds to achieve pilot ignition. Reinstall panel(s). NOTE: See Automatic Operation of Pilot at the end of this section.

4.6.7.Once the pilot burner flame has been established (the green light on the electrical panel is on), press the ON/OFF touch pad for the desired steamer cavity. The steam generator will fill with water.

NOTE: The door MUST be closed for the main (high) burner to work.

4.6.8When the steam generator has filled with water, the main and low burners will ignite automatically. Within 6-8 minutes the READY light will come on, indicating that the water has reached its standby temperature. When the READY light is displayed, you may take any one of the following steps:

OM/SM-HY-6G(CE)