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Contents
Abbreviations / Meanings ......................................................
Safety consideration.................................................................
Introduction ................................................................................
Abbreviations / Meanings ......................................................
Installation consideration ....................................................... 3-11
Models .....................................................................................
Power .......................................................................................
Installation ...................................................................................
Step 1 — User Interface Location..................................
Step 2 — Install User Interface .......................................
Installation (Table 1) .................................................................
Step 3 — Set UI Installer Configuration ...................
Climatic Curves...........................................................................
Pre-Set Curves ......................................................................
Climatic Custom Curves ..........................................................
Heating Curve Adaptation .....................................................
Factory Configuration Mode .................................................
Factory Configuration Mode (Table 2) ...............................
Clock...............................................................................................
Operational and connection information ........................
Error Codes ............................................................................
Fault Code Table ..................................................................
Wiring Diagram ..........................................................................
User Interface Configuration Record .................................. 18-19
Safety consideration
Read and follow manufacturer instructions carefully. Follow
all local electrical codes during installation. All wiring must
conform to local and national electrical codes.
Improper wiring or installation may damage the
Understand the signal words DANGER, WARNING, and
CAUTION. These words are used with the safety--alert
symbol. DANGER identifies the most serious hazards which
will result in severe personal injury or death. WARNING
Introduction
UI programmable user interface is wall--mounted, low--
voltage user interface which maintains room temperature
by controlling the operation of a heating and/or air
conditioning system. "Heat pump", " Air conditioner" and
"Heat only" are available, with the present ve rsions. A
variety of features are provided including separate heating
and cooling set-points, keypad lockout, backlighting, and
built--in installer test etc. Programming features include
2
Page
Abbreviations / Meanings
UI
User Interface Comfort Series 33AW-CS1
2
2
SUI
User Interface 33AW-RC1
2
CC
Climatic Curve
2
CDU Compressor Device Unit
Stb.
Stand by
3
LWT
Leaving water Temperature
EWT Enter water Temperature
3
REFR. Refrigerant Temperature
3
TE
Outdoor Heat Exchange Sensor
3
3
TD
Discharge Temperature Sensor
6
WSP Water Set Point
6
HP
Heat Pump
OAT
Outdoor Air Temperature
12
12
14
FR
Mode Frequency Reduction
15
TO
Outdoor Temperature Sensor
15
TR
Refrigerant Temperature Sensor
16
(Placed between the electronic expansion
valve and the Air to Water heat exchanger)
16
16
TS
Suction Temperature Sensor
16
17
18
signifies a hazard which could result in personal injury or
death. CAUTION is used to identify unsafe practices which
may result in minor personal injury or product and property
.
damage.
NOTE is used to highlight suggestions which will result in
enhanced installation, reliability, or operation.
7--day (all days the same), 5/2 (Mon--Fri and Sat--Sun) and
1-day (all 7 days individually) with 2 or 4 or 6 periods per
day.
This Installation Instruction covers installation,
configuration, and startup of UI. For operational details,
consult the Owner's Manual.
User interface
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