Boiler System Piping & Control Wiring - NTI WF200 Installation And Operation Manual

Installation and Operation Manual
5.0 BOILER SYSTEM PIPING & CONTROL WIRING
Failure to follow the instructions provided in this section will void the NTI warranty and
may result in property damage, fire, serious injury or death.
Installation and set-up of the Boiler System Piping and Control Wiring for the WF200 will depend largely on the
application it is being used in. This section of the manual details the two basic types of applications:
(1) WF200 installed as an Add-on to an oil boiler
(2) WF200 installed as a Stand-alone boiler
Regardless of the application, follow the instructions detailed under General Field Wiring and General
Boiler System Plumbing, as these instructions are common to all applications of the WF200 boiler. As the
specific application dictates, follow all instructions detailed under WF200 Installed as an Add-on to an Oil
Boiler, or WF200 Installed as a Stand-alone Boiler.
General Field Wiring
All wiring must be in accordance with the Canadian Electrical code, CSA C22.2 and any applicable local codes.
Ensure that the wiring complies with this manual. The boiler must be electrically grounded in accordance with
the National Electrical Code ANSI/NFPA 70, local codes, and/or the Canadian Electrical Code CSA C22.1.
Avoid Shocks - To Avoid Electrical Shock, turn off electrical power to the boiler prior to
opening any electrical box within the unit. Ensure the power remains off while any
wiring connections are being made. Failure to follow these instructions may result in
component failure, serious injury or death.
Wire Protection - use wire grommets suitable for securing the wiring and preventing
chafing, at each junction box / electrical device. Failure to follow instructions may result
in component failure and/or electrical shock causing serious injury or death.
Power Supply (120V / 1 Phase / 60 Hz / 12A) - The WF200 is designed to be powered
using a single phase 120VAC power supply that is fused (or protected via a circuit
breaker) to allow a maximum of 15 Amps. Failure to follow instructions may result in
component failure, serious injury or death.
Labeling - Label all wires prior to disconnecting them when servicing controls. Wiring
errors can cause improper and dangerous operation. Failure to follow instructions may
result in property damage or personal injury.
Continuity - Before connecting the line voltage wiring, perform a continuity check
between all wires and ground to make sure that there are no electrical leaks that could
blow a fuse or damage electrical components. Also check the polarity of the line and
neutral wires. Line must measure 120VAC to ground; neutral must measure zero.
Failure to follow instructions may damage the unit.
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WF200