PV500-2 06/10
2
Section 2
ELECTRICAL
1. Wiring to the unit should conform to the National
Electrical Code or the code legally authorized in your
locality. A fused disconnect switch should be used for
the water heater control. 120V, 1ph, 60 Hz service
wiring is brought to the terminal block in the lower part
of the enclosure on the water heater. See Figures 2-
2, 2-3 and 2-4.
FOR YOUR SAFETY
USE ONLY COPPER WIRE OF PROPER SIZING
FOR INCOMING SERVICE. DAMAGE RESULTING
FROM USE OF ALUMINUM WIRING WILL BE
EXCLUDED FROM COVERAGE UNDER THE
WARRANTY OF THIS UNIT.
Typical 24 Volt Control System
Figure 2-2
Typical 24 Volt Control System
with Damper
Figure 2-3
Typical 120 Volt Control System
Figure 2-4
