©2015 EasyHeat
www.easyheat.com
2
GC-1 Installation Instructions
2. Mount the GC-1 base securely to the exterior or outside
wall with four #10 screws, position with the hinges on
the bottom. Secure the GC-1 in an area where it will not
be damaged by tree movement or traffic and will sense
outside temperatures. The unit is water-resistant, but not
designed to be submerged or immersed in water. Ensure
that the mounting location is close (less than 25 feet) to
the MSG-1 gutter sensor position. See Fig. 3.
3. Carefully remove one of the knockouts on the low voltage
(right) side of the GC-1 base, fasten a watertight connector
for the MSG-1 sensor wire into place. If a remote control is
also being installed, use the second side knockout for an
additional connector. The side knockouts are metric sized,
M32/M20, the M20 knockout will accomodate a 1/2” fitting.
See Fig. 3
4. Figures 4 and 5 show the wiring schematics for connecting
the GC-1. Before connecting the controller to the electrical
power supply, consult the local, state or provincial, and
national electrical codes. The electrical code may require
a Ground Fault Protection device to be used.
5. Carefully remove two knockouts on the line voltage
(left) side of the GC-1 housing for the line and load wire
connections, secure two watertight connectors into place
and run the wires through. See Fig. 3
6. Select a location in the gutter for the MSG-1 housing,
ensure it is in an area where drainage is unimpeded and
that is free of debris accumulation such as leaves. An area
closer to the low end of the gutter slope is preferable.
Secure the MSG-1 housing within the gutter using the
mounting strap and screw provided, note the water flow
direction arrow on the top of the housing. The screw
provided is sized to fit into the hole on top of the MSG-1
housing. The wings on the side of the housing are designed
to fit over heating cables in the gutter. The housing will
sit at a slight angle off horizontal when installed, this is
normal, and the unit is designed to sit in such a manner.
The unit is water-resistant and may be submerged or
immersed in water in the normal course of operation See
Fig.6, 7.
7. Route the MSG-1 sensor wire along one triangular weave
of the heating cable on the roof. At the peak of the second
triangle, attach the sensor wire up the roof, at least 2 feet
past the heater wire. Use the clips provided to secure the
sensor wire to the roof. Gently squeeze the coated end of
the clip around the sensor wire. See Fig. 8.
8. Run the communication wire from the MSG-1 back to the
GC-1; do not run in the gutter.
9. Carefully lock the GC-1 cover into the base hinge. The
two pieces should easily slide together when open ½ way
(45deg.).
WARNINGS
1. This is not a “do-it-your-self” product. A qualified electrician
must install the GC-1 system.
2. If after carefully reading these instructions you still have
questions regarding installation, operation or maintenance
of this product, call the numbers listed for assistance.
3. Prior to installation, check the GC-1 and MSG-1 body
enclosure or wires for possible shipping damage. Do not
install a damaged GC-1 controller or MSG-1 sensor.
4. All heating equipment, controls & associated systems must
be installed in compliance with the latest editions of all
applicable electrical codes and ordinances.
5. Any heating cable that is to be connected to the GC-1 must
be installed according to the manufacturer’s instructions.
6. Do not connect more than a 24 Amp load to the GC-1 (See
Fig.4, 5 wiring schematics). Risk of fire, electric shock or ice
build up can result from a larger cable being connected.
7. Secure the GC-1 in an area where it will not be damaged
by tree movement or traffic.
8. The MSG-1 has been designed for the sole purpose of
connection to an EasyHeat GC-1 Controller. The risk of
fire or electric shock exists if the MSG-1 is connected to
any device other than the GC-1 Controller.
9. Secure the MSG-1 housing within the gutter in an area
where drainage is unimpeded and that is free of debris
accumulation such as leaves, etc. to prevent any damage
to the sensor housing.
10. Secure the MSG-1 sensor wire to the roof in an area
where run-off is unimpeded and that is free of debris
accumulation such as leaves, etc. to prevent any damage
to the sensor wire.
11. Avoid excessive shock or vibration.
12. Do not install an MSG-1 Sensor when the ambient
temperature is colder than 32°F (0°C). Installing the sensor
below this temperature will damage the connection wire
and result in the risk of fire or electrical shock.
13. Do not run the MSG-1 connection wire in the gutter. The
connection wire is not suited for water/ice submersion, as
would be expected in a gutter.
14. These instructions must be saved and made available to
owners or users of this product and/or transferred to future
owners.
INSTALLATION INSTRUCTIONS
1. Loosen the four screws on the GC-1 cover and open the
box ½ way (45deg.). Carefully separate the cover and base
at the hinge, the two pieces should easily slide apart. You
will see that line and load voltage connections (left) are
separated from the sensor and remote signal connections
(right).
