Hired-Hand Universal Ray Tube Heaters: AG2 Series Rev.11-07 - Manual (Page 7)

WARNING
!
!
• 120 Volt - 60 Hz GRD, 3-wire.
• 24V control connection.
• Starting current 4.8 amps
• Running current 1.1 amps
The AG2 Series is equipped standard with an internal relay board. 24 volts must be supplied to each
heater’s yellow control cord. 120 volts is supplied to the heater’s black cord; observe polarity.
Confirm proper two-stage electrical wiring by cycling heater between stages. Confirm proper operation of
high fire, low fire and off cycles.
7
2.0 Installation • Wiring
Electrical Requirements
Connecting the thermostat with a voltage other than 24V may damage the heater. The AG2 Series
requires a 24V connection to the thermostat. This is supplied by an external transformer (field supplied).
See below.
Electric Shock
Field wiring to the tube heater must be connected and grounded according to the guidelines
in the Tube Heater General Manual and Series Insert Manual and in accordance with
national, state, provincial and local codes. In the United States refer to the most current
revisions to the ANSI/NFPA 70 Standard and in Canada refer to the most current revisions
to the CSA C22.1 Part I Standard.
Wiring
AG2 Series
Figure 2.2 • Field Wiring Diagrams
A. Multiple Heaters, Single Control. With Relay Board
N L1
N
L1