REFCO LAC Extreme - Manual (Page 2)

HVAC/R
Service Products
REFCO Manufacturing Ltd. Telefon +41 41 919 72 82
Industriestrasse 11 Telefax +41 41 919 72 83
CH-6285 Hitzkirch (Switzerland) [email protected] www.refco.ch
HEATING MODE OPERATION
Heat pump models incorporate terminals for connection to the reversing
solenoid valve. The controller is configured to automatically produce 100%
fan speed in heating mode with the reversing valve energised.
SAFETY FIRST
Disconnect all power supplies before starting installation or maintenance
work. The controller and sensor are to be safely enclosed within the hou-
sing of the condensing unit, or other enclosure. The controller must be fit-
ted in a dry location, where water cannot fall in to it, or be blown on to it by
the moving fan. The plastic enclosure of the controller is designed to protect
the internal components. There are no user-serviceable parts. All electrical
wiring must be carried out by a competent person, and must comply with
all National and Local Electrical Codes.
FITTING THE CONTROLLER
The Controller should be mounted inside the outdoor unit, protected from
any water dripping on to it, or blown by the fan. The Controller must be
secured to a flat even surface.
WIRING THE CONTROLLER
Fig. 2 illustrates the preferred wiring of the Controller. However some fan
motors may control more smoothly when as in Fig. 3.
Fig. 2 Preferred Motor Wiring Fig. 3 Alternative Wiring