User's Manual
Install the ProMix 3KS Upgrade Board
14 313881B
Install the ProMix 3KS
Upgrade Board
1. Shut off ProMix 2KS power (0 position). F
IG
. 4. Also
shut off power at main circuit breaker.
2. Unlock and open EasyKey door with its key.
3. Locate the display board (C). F
IG
. 5.
4. Remove one screw (E) and unplug the existing Pro-
Mix 2KS auto key board from the display board
assembly. F
IG
. 5.
NOTE: Manual systems may not have an auto key
board. Go to step 5.
5. Align connector J4 on the underside of the new Pro-
Mix 3KS upgrade board (UB) with J3 on the display
board. Press them together. F
IG
. 5.
6. Secure the ProMix 3KS upgrade board (UB) with
the screw (E).
• To avoid electric shock, turn off EasyKey power
before servicing.
• Servicing EasyKey exposes you to high voltage.
Shut off power at main circuit breaker before open-
ing enclosure.
• All electrical wiring must be done by a qualified
electrician and comply with all local codes and reg-
ulations.
• Do not substitute or modify system components as
this may impair intrinsic safety.
• Read Warnings, page 6.
NOTICE
To avoid damaging circuit board when servicing, wear
grounding strap on wrist and ground appropriately.
F
IG
. 4: Power Off
0 = OFF
TI12657a