Raypak 1334001 Electrical Connections, 100% Pilot Safety, Low Water Cut-OffOptional

100% Pilot Safety

Models 0514-4001 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 per- forms its own safety check and opens the main valve only after the pilot is proven to be lit.

Low Water Cut-Off (Optional)

The low water cut-off automatically shuts down burner whenever water level drops below probe. 5-second (max) time delay prevents premature lockout due to temporary conditions such as power failure or air pockets. Flush float type devices at beginning of each heating season.

CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

The heater is normally wired for 120 Volts. The voltage is indicated on the tie-in leads. Consult the wiring dia- gram shipped with the heater in the instruction packet. The "TH" leads are for the remote tank control connec- tion. 24 Volts are supplied to this connection through the heater transformer. DO NOT attach line voltage to the "TH" leads on models 0514-1826. Before starting heater check to ensure proper voltage to heater and pump.

Heater must be electrically grounded in accordance 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

Fig. 27: Low Water Cut-Off

High and Low Gas Pressure Switches (Optional)

These switches sense either high or low gas pres- sures and automatically shut down burners if abnormal pressures exist.

STAGE 1

CONNECTION

ATTACH STAGE 1 CONNECTIONS

ON HEATER TO THE SINGLE STAGE

TANKSTAT AS SHOWN IN THE DIAGRAM ABOVE.

Fig. 29: Single-Stage Tankstat

2-STAGE

TANKSTAT

Fig. 28: Gas Pressure Switch

Electrical Connections

DANGER - SHOCK HAZARD: Make sure electrical power to the heater is disconnected to avoid potential serious injury or damage to components.

STAGE 1	STAGE 2 CONNECTION OR
	STAGE 1 CONNECTION
CONNECTION
	OF HEATER 2

ATTACH STAGE 1 CONNECTIONS ON HEATER TO STAGE 1 CONNECTION ON TANKSTAT.

ATTACH STAGE 2 CONNECTIONS OR STAGE 1 CONNECTION OF HEATER 2 TO STAGE 2 CONNECTION ON TANKSTAT AS SHOWN IN THE DIAGRAM.

Fig. 30: 2-Stage Tankstat (2 On/Off Units)

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