Electrical Connections - Dyna-Glo GUH50NE/LE Operating Instructions And Owner's Manual

all doors between the space in which the appliances
remaining connected to the common venting system
are located and other spaces of the building. Turn
on clothes dryers and any appliances not connected
to the common venting system. Turn on any exhaust
fans, such as range hoods and bathroom exhausts, so
they will operate at maximum speed. Do not operate a
summer exhaust fan. Close fireplace dampers.
4. Follow the lighting instructions. Place the appliance
being inspected in operation. Adjust thermostat so
appliance will operate continuously.
5. Test a draft hood equipped utility heater for spillage at
the draft hood relief opening after 5 minutes of main
burner operation. Use the flame of a match or candle.
6. After it has been determined that each appliance
remaining connected to the common venting system
properly vents when tested as outlined above, return
doors, windows, exhaust fans, fireplace dampers and
any other gas-burning appliance to their previous
condition of use.
7. If improper venting is observed during any of the above
tests, the common venting system must be corrected.
The common venting system should be re-sized to
approach the minimum size as determined by using the
appropriate tables.

ELECTRICAL CONNECTIONS

NOTE: The GHP series unit/utility heaters use a direct
spark ignition system. There is no pilot necessary as the
spark lights the main burner as the gas valve is turned
on. The direct spark ignition control board emits radio
noise during burner ignition. The level of energy may
be enough to disturb a logic circuit in a microprocessor
controlled thermostat. It is recommended that an isolation
relay be used when connecting the unit heater to a
microprocessor controlled thermostat. Select circuit
protection and wire size according to the unit rating plate.
Install a separate disconnect switch (protected by either
fuse or circuit breaker) near the unit so that power can
be turned off for servicing. Remove electrical junction
box cover and connect wiring through knockout on the
junction box located on the side of the heater. Refer to
heater wiring diagram for connection information. Use
18 gauge wire or larger for line power connections.
Make sure to connect line power to wires located in the
external electrical junction box behind junction box cover.
DO NOT CONNECT LINE POWER TO THERMOSTAT
TERMINAL STRIP ON OUTSIDE OF HEATER.
Electrically ground the unit in accordance with local codes
or in the absence of local codes, in accordance with the
current National Electrical Code (ANSI/NFPA No. 70)
in the USA, and in Canada with the current Canadian
Electrical Code, Part 1 CSA C22.1
NOTE: Un-insulated ground wire must be wrapped in
electrical tape to avoid damage to the electrical system.
Make line voltage connections as shown in figure 6.
Connect field wiring as shown on wiring diagram on unit.
Also, refer to typical diagram in this manual.
To use the blower for air circulation only, your thermostat
must have a "fan only" or fan selection setting. In case
your thermostat has this option. an additional wire should
be run to the "G" terminal on the thermostat connection
block. See wiring schematic on page 13.
LINE VOLTAGE FIELD WIRING
BLACK
L
WHITE
N
GND
GAS SUPPLY CONNECTION
SUPPLY
LINE
1/8" NPT
SHUTOFF
PLUG
VALVE
3"
NIPPLE
CAP
NOTE: The unit heater is compatible with most
programmable and WiFi thermostats.
FIGURE 6
RIGID PIPE WITH
UNION OR A FLEXIBLE
CONNECTOR TO HEATER
FIGURE 7
GAS UNIT HEATER
9