6 C2400M-B (1/06)
9. Route the heater and defroster wires from the front of the enclosure so they will be
underneath the camera sled or between the track rail and body of the enclosure.
10. Do one of the following depending on the model number of the enclosure:
• EH3512 Series and EH3515 Series
To connect the heater and defroster to power, you will need to access the PC board. To
remove the PC board cover, insert a screwdriver into the slot on top of the cover and lift
the cover off.
Connect the heater and defroster wires to the PC board (refer to Figure 2). If required,
connect ground to the stud on the bottom of the enclosure just in front of the PC board.
Replace the PC board cover, making sure it snaps securely back into place.
Be sure the wires are not obstructing other accessories within the enclosure. If you are
installing HD3515-2 heater kit (24 VAC), refer to Table A.
Figure 2.
Wiring Diagram for 24/120/230 VAC Models
• EH3515L Legacy Series
Connect the front and rear heater wires to the HTRS connector (P5) on the circuit board
and the defroster wires to the FAN connector (P4) (refer to Figure 3). You are installing a
lower wattage defroster. You must connect the defroster to FAN (P4) on the PC board to
operate continuously. If you have a blower installed (which is also connected to P4), splice
the defroster wires to the fan wires. If you are installing HD3515-2 heater kit (24 VAC),
refer to Table A.
Figure 3.
PC Board Component Locations
1
2
3
4
5
6
7
8
9
10
INPUT, AC HIGH
INPUT, AC LOW (NEUTRAL)
DEFROSTER
FRONT HEATER
REAR HEATER
MODELS HD35 AND HD3515 SERIES
MODEL HD3515 SERIES ONLY