Thomas & Betts EPW user manual

Summary of the content on the page No. 1

Electric,
Water Circulation Heater
Applies to Heater Model EPW
Installation/Operation/Maintenance Form MI511
Figure 1
1.0 INITIAL INSPECTION
HOLDING BOLTS
DIMENSIONS
FOR BRACKET
29"
1 1/2" OUTLET
1.1 Upon receipt from the carrier, inspect the heater
11 3/4"
for possible damage in transit. If necessary, immediately
report damage to shipping company.
1 1/2" INLET
1.2 Verify that the nameplate voltage, phase, wattage
15"
and catalog number comply with the order.
22 1/2"
1.3 The EPW, when configure

Summary of the content on the page No. 2

Figure 2 TYPICAL INSTALLATION Control Fuse *N.B. WHERE THERMOSTAT BULB IS LOCATED OTHER THAN OUTLET, FLOW SWITCH IS RECOMMENDED. 2.7.5 Optional expansion tank (for closed loop systems) 3.3 After all piping is installed turn the thermostat to its is mounted in the outlet piping. lowest setting and operate the circulating pump for up to 1/2 hour to check for leaks and to remove air pockets. In closed 2.7.6 A 1 1/2" NPT drain plug is fitted at the bottom of loop systems use the air bleed valve to r

Summary of the content on the page No. 3

3.6 The built-in temperature high limit is factory set at Figure 4 180°F (82°C). This control works best when it is set about Accessories 40°F (22°C) above the water outlet temperature. To adjust the limit control setting remove the small panel on the limit control to access the adjustment screw. Under normal Protective Well operation the heater should not cycle on the limit control. CWI-6 3.7 If the limit trips it must be manually reset before the 1/2" NPT heater will operate. Prior to reset, t