Outlet

INSTALLATION

1.Using a 3/4" union and piping, connect the booster heater water outlet to the commercial dishwasher sanitizing rinse pipe connection.

CAUTION

To assure proper operation on all Large Compact Series units, (C-24 to C-57), do not turn or adjust outlet water connection.

NOTE: Red mark on outlet water pipe for C-24 to C-57 series units must remain in the top most position.

NOTE: Be certain the connection is made to the final rinse and not to the wash tank.

2. Install a temperature/pressure gauge in the outlet

line. The temperature sensing element must be

Temperature/pressure gauge with 1/2" pipe thread

1/2" copper female	1/2" pipe thread
fitting adapter

	3/4" nominal	Temperature
		sensing element
	copper pipe

Figure 14. Recommended Temperature/Pressure

Gauge Installation

Temperature/pressure gauge with 1/2" pipe thread

in the water stream and the gauge must be

mounted upright. Water temperature at the outlet

should be 185°-190°F (85°-88°C). (See Figure

14 or 15.)

NOTE: Some dishmachines require two booster heaters be plumbed in series (not parallel) to meet the demand. (See Figure 9.) To assure proper operation a 20°F (11°C) temperature differential must be maintained between the outlet of the first booster heater and the inlet of the second booster heater.

Center bottom of sensor

in copper pipe

3/4" nominal copper pipe

3/4" x 1/2" x 3/4" copper tee

1/2" copper female fitting adapter

Temperature sensing element

NOTE: Hatco recommends installing an optional shock absorber, Hatco part number 03.04.057.00, in the outlet line as close as possible to the commercial dishwasher solenoid rinse valve. The shock absorber softens the water hammer caused by automatic dishwasher valves.

Plumbing Installation Inspection

1.Close drain pipe valve and fill booster heater with water.

2.Check all pipe connections for leaks.

3.Make sure relief valve discharge is not blocked.

4.Vent air from tank before operating by opening temperature/pressure relief valve.

CAUTION

Do not turn on power to the booster heater until the tank has been filled with water and all air has been vented through the dishwasher rinse nozzle. The heating elements will burn out in seconds if operated when they are not immersed in water.

Figure 15. Alternate Temperature/Pressure

Gauge Installation

WARNING

Hatco has always endorsed the use of safety equipment when using a booster water heater or storage-type water heater. Hatco booster heaters are shipped with a temperature/pressure relief valve at no extra charge. This valve must be installed into the marked opening provided in the tank. Valves supplied by Hatco are designed for high temperature commercial operation. Do not substitute Hatco supplied valves with valves designed for domestic operation.

WARNING

It is essential to recognize that even though a water heater may be properly installed initially and approved, there always exists the possibility that unknowing individuals might alter or change the installation in a manner that would render it unsafe. Therefore, it is important that all safety programs provide some mechanism to assure that these installations are inspected periodically.

Form No. EBOOSTERM-0406