POSITIVE TEMPERATURE COEFFICIENT (PTC2) HEATER MANUAL
PTC2 Heater Systems are manufactured and distributed by Waukesha
®
Service & Components, a division of SPX Transformer Solutions, Inc.
PTC2-Manual Rev. 1.3, 04/2013
6
INSTALLATION (continued)
HEATER MOUNTING
The heater is designed to mount directly to standard 35mm x
7.5mm DIN rail. The DIN rail mounting clip can be installed on
either side of the heater to facilitate preferred harness
connections. In addition, the heater can be configured to include a
short piece of DIN rail for customer mounting or a 4-hole adapter
plate for mounting on flat panel applications (see Figure 2 at right).
The adapter is also a direct retrofit to the original PTC design.
OPERATION
Operation of the heater assembly is automatic and requires no adjustment. As the heat level in the
enclosure increases, the resistance of the heater element also increases, resulting in a decrease of the
output wattage. In all temperatures, the fan will run constantly to ensure enclosure temperature remains
consistent throughout.
MAINTENANCE
The PTC heater is essentially maintenance-free with only a few necessary checks to ensure that the unit is
operating normally.
ANNUAL INSPECTION
CAUTION
The surface of the heater element is very hot and can cause burns.
Never cut or
remove the plastic heat shield.
Visually inspect that the fan is running quietly and that no foreign material has entered the assembly. Verify
that heater element shield is warm to the touch.
TROUBLESHOOTING
THE FAN OR HEATER IS NOT OPERATING
Confirm that the voltage input to the PTC2 assembly is the correct voltage. Check heater assembly
terminals at the power harness quick-connect plug.
Check wiring harness for cuts or bare insulation.
Confirm fan assembly has not been clogged with debris—clean if necessary.
REPLACEMENT PARTS AND SERVICE
Please contact us at
800-338-5526
for replacement parts and/or service. Or visit us online at
www.waukeshacomponents.com.
Figure 2 – Flat Panel Adapter
