Rheem 136-1826 Electrical, Single Stage Tankstat, Start-Up, On-Offoperation

100% PILOT SAFETY (IID Units)

All heaters employ electronic devices, which close the main gas valve within 8/10 of a second whenever the pilot flame is interrupted. Pilot flame is automatically lit when the device is powered. Unit performs its own safety check and opens the main valve only after the pilot is proven to be lit.

ELECTRICAL

Heater electrical characteristics are

Primary: 115 volt 60 Hz 1 phase.

Secondary: Control Circuit: 24 volts.

CAUTION: All wires prior to disconnection when servic- ing 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 disconnected to avoid potential serious injury or damage to compo- nents.

The heater is normally wired for 120 Volts. The voltage is indicated on the tie-in leads. Consult the wiring diagram shipped with the boiler in the instruction packet. The "TH" leads are for the remote tank control connec- tions 24 Volts are supplied to this connection through the heater transformer. DO NOT attach line voltage to the "TH" leads on sized 133-1826. Before starting heater check to insure proper voltage to boiler and pump.

Single Stage Tankstat

HEATER DPST TANKSTAT CONTROL WIRING Heater must be electrically grounded in accordance

with National Electrical Code ANSI/NFPA No. 70.

Single Stage Tankstat

NOTES:

1.Field Installed ground to inside of junction box.

2.If any of the original wire as supplied with the heater must be replaced, it must be replaced with 105°C wire or its equivalent.

WARNING:

Before starting check to insure proper voltage is supplied to heater and pump.

Heater must be electrically grounded in accordance with the National Electrical Code ANSI/NFPA No 70 latest edition.

Use wiring diagram supplied with the heater.

START-UP

1.Fill system with water, flush, to remove particles and other foreign objects that can cause pump damage.

2.Check electric supply characteristics

a.Voltage to heater: 115 volts 60 Hz. 1 phase 15 amp circuit breaker.

b.Voltage to pump:

3.Set operating and limit controls.

ON-OFFOPERATION

Set storage tank tankstat to desired temperature. This is the operating control. See Operation sequence, page 22.

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