1
B 335 -RTP 82 Eng
03.93
We reserve the right to make changes without notice
COSTER
APPLICATION
RTP 82 is designed for the control of mixing or diverting valves
operated by reversible actuators (3-wire electric control), for the
regulation of room temperature and of the maximum flow tempe-
rature limit (45
°
C) in underfloor heating systems:
•
Single-family dwellings
•
Flats with autonomous heating
•
Residential complexes with zone heating.
•
Single spaces in industrial or craft premises
ESSENTIAL ACCESSORIES
No.
Description
Model
Sensing element
Symbol
Data sheet
For all models :
1
Immersion flow temperature detector
SIH 010
NTC 10 k
Ω
B1
N 140
For /D models :
1 or 4
Room temperature detectors (4 for large spaces)
SDA 010
NTC 10 k
Ω
B2
N 110
or 2
Room temperature detectors (for large spaces)
SDA 020
NTC 20 k
Ω
B2
N 110
MODELS
Model
Description
RTP 825
With 24-hour quartz time switch and room detector incorporated
RTP 826
With 7-day quartz time switch and room detector incorporated
RTP 825/D
With 24-hour quartz time switch and remote room detector
RTP 826/D
With 7-day quartz time switch and remote room detector
B 335
03.93
MODULATING ELECTRONIC ROOM CONTROLLERS
FOR UNDERFLOOR PANELS
RTP 82
Eng.
•
Power supply 220/240 Volt ac; IP 20 protection
•
One modulating output with PI control action and voltage-free SPDT contacts
•
24-hour or 7-day time switch
•
Maximum flow temperature limit (45
°
C)
fig. 1
OPERATING DIAGRAMS
Controller with room detector incorporated
Controller with remote room detector
12
3
6
9
20
15
COSTER
RTP 82
T
N1
Y
M
B1
E2
E1
12
3
6
9
20
15
COSTER
RTP 82
T
N2
Y
M
B1
E2
E1
B2
E1
E2
– Boiler
– Underfloor panels
B1
B2
– Flow detector
– Room detector
N1
N2
– RTP 82 .. controller
– RTP 82 .. /D controller
M
Y
– Plant pump
– Mixing valve
