![background image](http://html.mh-extra.com/html/carrier/edge-tp-prh/edge-tp-prh_installation-instructions-manual_2564089011.webp)
11
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage
or improper operation.
Improper wiring or installation may damage Thermidistat
Control. Check to make sure wiring is correct before
proceeding with installation or turning on power.
CAUTION
!
1. Turn off all power to equipment.
2. If an existing Thermidistat Control or thermostat is being replaced:
a. Remove existing control from wall.
b. Disconnect wires from existing thermostat, 1 at a time.
c. As each wire is disconnected, record wire color and terminal marking.
d. New or additional wires may be needed to accommodate added hu-
midity outputs.
e. Discard or recycle old control.