iWorX® ALM2
8
505-013, Effective: November 12, 2010
© 2010 Taco Electronic Solutions, Inc.
Grounding the Device
The ground terminal (T40) must be securely connected to earth ground. Failure to properly ground this
equipment will result in improper operation. Improper grounding may also increase the risk of electrical
shock and may increase the possibility of interference with radio/TV reception.
For best performance, connect the power supply common terminal (T38) to the same external point as the
ground terminal (T40).
WIRING INFORMATION
WARNING: Terminals 9, 12, 15, 18 and 38 are connected internally on all ALM2 controllers. Disconnect
ALL power sources when installing or servicing this equipment to prevent electrical shock or equipment
damage.
The Figures below show a typical ALM2 installation with four thermistor inputs and four switch inputs. All outputs are
connected to loads. These are only examples. Not all applications will require one of these wiring configurations.
Figure 2:
Class 2
Typical ALM2 Wired as Power Sourcing
