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CAUTION: Label all wires prior to disconnection when
servicing controls. Wiring errors can cause improper
and dangerous operation. Verify proper operation after
servicing.
DANGER - SHOCK HAZARD
Make sure electrical power to the heater is discon-
nected to avoid potential serious injury or damage to
components.
The heater is normally wired for 120 Volts. The
voltage is indicated on the tie-in leads. Consult the
wiring diagram shipped with the heater in the instruc-
tion packet. The "TH" leads are for the remote tank
27
ELECTRICAL CONNECTIONS
control connection. 24 Volts are supplied to this con-
nection through the heater transformer. DO NOT
attach line voltage to the "TH" leads on models 514-
1826. Before starting heater check to ensure proper
voltage to heater and pump.
Heater must be electrically grounded in accor-
dance with National Electrical Code ANSI/NFPA No
70.
NOTES:
1. Field install ground wire to inside of junction box.
2. If any of the original wire supplied with the heater
must be replaced, it must be replaced with 105°C
wire or its equivalent.
SINGLE-STAGE TANKSTAT 2- STAGE TANKSTAT
(2 ON/OFF UNITS)
Fig # 9138.2 Fig # 9138.1