The guest can use the room unit to do the following:
•
Adjust the preset room temperature setpoint by ±2 K or by ±4 K in eight steps. The
step size of 0.5 or 1.0 K can be configured in the room controller. The eight
temperature-change increments are indicated by a horizontal scale across the center
of the LCD display panel.
•
Enable fan speeds 1, 2 and 3 manually
•
Change from manual to automatic mode ("Auto")
Switching to "Auto" causes the fan speed to be set automatically by the controller
(Speed 1, 2 or 3). The fan status is indicated by symbols across the bottom of the LCD
display panel.
The temperature setpoint valid for the room is displayed in digits on the LCD display
panel. Throughout the period for which the guest is checked in, the individual setpoint-
setting remains valid. It cannot be overwritten by the hotel service staff.
When the guest leaves the room (removing the access card from the card holder) the
system switches automatically to "Auto", and the "Precomfort" room operating mode
with the energy-saving function (widening of the deadband) comes into effect. When
the guest returns to the room, the "Auto" mode remains active and the "Comfort" room
operating mode, with the guest's personally selected setpoint adjustment, is restored.
In conjunction with the HOTEL SOLUTION system, the room temperature setpoints
preset for a given room are automatically re-instated when the guest checks out.
Rear view
ADR0
ADR1
PROT
TERM
ON
1 2 3 4 5 6
R
S
48
5+
R
S
48
5-
D
C
12 V
DC
0
V
N
T
C 10 K
N
T
C 10 K
63
20
Z
02
4
5
4 Terminal
block
•
Connection to room controller
5 DIP
switches
•
Bus address setting (ADR0, ADR1)
•
Protocol setting
−
PROT = 0, for HRC3.1/HRC3.2 room controller
−
PROT = 1, for HRC3.8 room controller
•
Control of RS485 bus termination resistance
−
TERM = 0, bus termination resistance disabled
−
TERM = 1, bus termination resistance enabled
Key
STOP
Important note
The bus termination resistance must be enabled on the last bus device only.
4/10
Building Technologies
HTC3.2/.. - Room operator unit
CM2N6320en
01.09.2008