Hubbell JHX, Инструкция по установке, эксплуатации и обслуживанию, Страница: 12 / 44

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Flush the line: Before connecting the union to the unit, it is extremely important to
flush the lines to eliminate all plumbing paste, residue, or debris in the lines
Checking for Leaks and Purging Air:
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If unit has been wired, verify all circuit breakers supplying power to the unit are
turned off.
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Open all valves supplied by the unit and inspect water connections for leaks.
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With all valves still open, allow the water to run for a minimum of 3 minutes.
Inspect the outlets to ensure all air in the lines has been purged. This process purges
all the air from the water lines and MUST be performed prior to turning on the power
at the unit.
WARNING:
FAILURE TO FOLLOW THIS STEP CAN CAUSE
PERMANENT DAMAGE TO THE HEATING ELEMENTS.
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Close all valves.
Electrical Installation Instructions:
IMPORTANT INFORMATION:
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The unit must be wired in accordan ce with the current version of the National
Electrical Code (US) or Canadian Electric Code (Canada).
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The unit must have its own independent circuits.
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When the heater is not within sight of the electrical circuit breakers, an additional
local means of disconnection of all ungrounded conductors must be provided that is
within sight of the appliance or a circuit breaker lockout must be used. (Ref. NEC
422.31)
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Wire entry must be through the electrical KO provided in the bottom of the unit.
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For Canada, per Canadian Electric Code, C22.1-02, the unit must be wired by a single
feed installation with one (1) double-pole circuit breaker.
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For US, the unit may be wired by a single feed installation with one (1) double-pole
circuit breaker or by a multiple feed installation with multiple double-pole circuit
breakers.
Wiring to the booster heater:
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Connect the power wire from the main panel to the power distribution block or
magnetic contactor as applicable.
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Connect the main ground wire to the ground lug in the heater.
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Make sure the connections are securely tightened.
Electrical Specifications:
Listed below are the electrical specifications for each tankless booster heater model.