21
UH
Series
Electrical Requirements and Wiring Diagrams
All field installed wiring to the unit heater must be must be done in accordance with the national, state,
provincial, local codes and to the guidelines in this manual. In the United States, refer to the most
current revisions to the Electrical Code ANSI/NFPA 70 and in Canada refer to the most current
revisions to the Canadian Electrical Code CSA C22.1 Part 1. The unit must be electrically grounded
according to these codes. Line polarity must be observed when making field connections.
Internal Wiring Diagrams
Before wiring this appliance, check the existing wiring; replace if necessary. If any of the original wire
supplied with the appliance must be replaced, it must be replaced with copper wiring material having a
rating of at least 600V, 105°C.
Figure 3.5
•
Internal Wiring Diagram
WARNING
!
Shock hazard.
Disconnect power supply before making wiring connections to prevent
electrical shock and equipment damage.
Any original factory wiring that requires replacement must be replaced with wiring
material having a temperature rating of at least 105°C.
3.0
Installation
•
Electrical Requirements and Wiring Diagrams
•
Internal Wiring Diagrams
