Blakeslee DD-8 - Manual (Page 9)

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Electric Heater
WARNING
Before performing any service that involves electrical
connection or disconnection and/or exposure to
electrical components, always perform the Electrical
LOCKOUT/TAGOUT Procedure. Disconnect all circuits.
Failure to comply with this procedure can cause
property damage, injury or death.
Electrically heated machines are available in 208, 240,
or 440-480 volts, single- or three-phase only. They are
prewired at the factory and only one common connection
is required. Use L1 and L2 for single-phase units and L1,
L2 and L3 for three-phase units.
Additional instructions are located inside the control
box. Make sure the wire size is adequate to carry the
amperage load.
The temperature is controlled by the thermostat located
in the control box.
Thermostat –
Turn screw clockwise to
increase temperature;
Turn counterclockwise to
decrease temperature
Incoming
power
connection
Thermostat & Power Connection Locations
Gas Heater
Before making a gas connection, verify the gas type. A tag
is attached to the gas valve that will indicate the correct
gas type (L.P. or Natural) to be supplied to the unit.
Note: If the tag is missing, the gas type can be determined
by inspecting the gas valve. A Natural gas valve will
have a pressure regulator where a L.P. gas valve will
not.
WARNING
Instructions to be followed in the event the operator
smells gas or otherwise detects a gas leak must be
posted in a prominent location. This information
can be obtained from the local gas company or gas
supplier.
WARNING
All connections must be sealed with a joint compound
suitable for the gas being used and all connections
must be tested with a solution of soapy water before
lighting any pilots.
Never use matches, candles, or any other ignition
source to check for leaks. If gas odors are detected,
shut off the gas supply to the appliance at the main
shutoff valve and immediately contact the local gas
company or an authorized service agency for service.
The natural gas valve has a pressure regulator
for minor adjustments to the gas pressure. L.P.
gas pressure must be adjusted by the customer’s
regulator.