WarmlyYours PD Pro Snow Switch - Manual (Page 14)

Snow Switch ® Model PD Pro
Instruction Manual
23735 Rev. B 06/14 (800) 234-4239 http: www.networketi.com Environmental Technology, Inc. 14 of 30
POST-INSTALLATION TESTING
Installation errors cause the majority of system problems. Therefore, thoroughly check the
system before placing it into service. Simple electrical tests and visual inspection can identify
any wiring errors, as well as improper waterproofing. Visually inspect for proper wiring and
waterproofing, making sure that all box joints are sealed and that all wiring is properly
terminated.
In performing the post-installation test procedure as described below, the heat tape will activate,
even if only for a brief time, so that system performance can be accurately simulated and
measured. For that reason, and depending specifically on the ambient temperature or general
conditions in which the system is being installed, it is recommended to continuously and
carefully monitor the system and its components during the entire testing process. High
temperatures can cause damage to asphalt and similar paving materials. Never leave the site
during testing. Never leave the system unattended during testing. If fire or smoke or an
abnormal odor is observed during testing, shut off power to the system and suspend the test.
To most accurately simulate and measure system performance, leave the heat tape connected to
the control during testing and use a clamp-on amp meter as directed in this procedure. Using
the clamp-on amp meter clamped around the wires prevents the operator from having to touch
bare or exposed metal or wiring and also keeps the operator from having to break the circuit, all
while still allowing the accurate simulation and testing of the system, including the Ground Fault
Equipment Protection circuitry, if your system is so equipped.
It is the responsibility of the on-site installer to assess the overall safety concerns at the site and
to disconnect the heat tape, as necessary or desired, whether before or during this test, as well
as to re-establish those wiring connections at the conclusion of this procedure.
WARNING
Even when the heat tapes are disconnected, as long as the circuit breaker is on and power is
running to the unit, voltage is still being applied to the yellow heat tape leads. Therefore, never
touch the ends of the yellow leads or let the two leads touch each other. Do not let the two
yellow heat tape leads contact any component inside the unit.
This procedure requires a clamp-on amp meter or voltmeter. Make sure the gutter and
downspout are both dry before testing the GIT–1 sensor. Record test results in the appropriate
section on page 2 of this manual for future reference.