DURAWATT EXR WATER HEATER

TYPICAL CONSTRUCTIONFigure 33-1

1.

Status lights

7.

Fuses

 

(GRN-Power on; YEL-Elements on;

8.

Contactors

 

RED-Over temp or low water

9.

Step-down transformer (optional)

2.

Float low water cutoff

10.

Primary heating element (NEMA 7)

3.

Temperature limiting device

11.

Operating thermostat

 

(Set at 190°F)

 

(Set at 120°F, adjustable from 80°F to 185°F)

4.

Temperature & pressure relief valve

12.

Secondary heating element (NEMA 7)

5.

Control enclosure

13.

Drain

6.

Supply & remote signal connections

 

 

PV500-33 05-2002

2

Section 33