14.Electrical Supply and Connections (cont’d)
Supply Wiring (cont’d)
Disconnect Switch
FIGURE 9 -
Disconnect Switch
24V Control Wiring Connections
15.Thermostat and Connections
conduit and have a minimum temperature rise rating of 60°C. Conduit must be run so as not to interfere with the heater access panel.
CAUTION: Route wires so that they do not contact the flue wrapper or venter housing. When running electrical conduit, be careful that it is clear of all access panels.
The heater is equipped with a
WARNING: To prevent injury or death due to electrocution or contact with moving parts, lock disconnect switch open. See Hazard Levels, page 2.
WARNING: If you turn off the power supply, turn off the gas. See Hazard Levels, page 2.
Model LDAP supply wiring enters above and connects directly to the disconnect switch (See FIGURE 1A or 1B in Paragraph 7 and FIGURE 9). A circuit board (See FIGURE 13 in Paragraph 20) is located in the control compartment of each heat section. The circuit boards are polarity sensitive. It is advisable to check the electrical supply to be certain that the black wire is the “hot” wire and that the white wire is the neutral wire. The supply connection made to “L1” on the disconnect switch must be the “hot” wire.
Each heat section in the heater has a terminal strip for
Use either an optional thermostat available with the heater or a
Make sure that the heat anticipator setting on the thermostat is 0.6 amps (or in accor- dance with the amperage value noted on the wiring diagram of your heater).
Make thermostat connections at the terminal strip on the front of the heater. The strip has seven terminals, R, G, C, Y1, Y2, W1, and W2. Refer to the wiring diagram on the heater.
IMPORTANT: All heaters MUST be operated by a
Connections for Reznor optional thermostats are shown in FIGURE 10 for LDAP 400; in FIGURE 11 for LDAP 800; and in FIGURE 12 for LDAP 1200.
•Option CL1 -
•Option CL2 -
•Option CL3 -
•Option CL7 -
•Option CL18 -
Form