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– 1 modulating or On-Off output for control valve or burner
– 1 On-Off output for control pump or burner in relation to programmed times
– voltage-free output contacts
– adjustment of heating curve to compensate for weather variations in intermediate seasons
– possibility of adjusting value of desired ambient temperature by remote control
– administrative and commercial centres
– schools and public buildings
– apartment blocks
It is suitable for all climatic zones and for any type of heating media:
– panels
– radiators
– fan coils
– PI control action
– adjustment of heating curve to compensate for weather variations in intermediate seasons
No. Description Type Sensing element Code Data sheet
ESSENT IAL ACCESSORIES :
1 Surface plant flow temperature detector
NTC 10 k
B1 N 130
or immersion
NTC 10 k
B1 N 140
1 Outside temperature detector
NTC 1 k
B2 N 120
OPTION AL ACCESSORIES:
1 Remote control
– R N 711
Compensating controller with 7-day time switch
Code Description
– power reserve 100 h
– dial 4-hour or 7-day
– minimum daily interval 15 min.
– minimum weekly interval 24 h
– operating 0...+45 °C
– storage – 25...+60 °C
– maximum switched voltage 250 V~
– maximum switched current 5 (1) A
– Normal and Setback ambient temperature 0...30 °C
– K factor 0.5...3.5
– adjustment C curve ± 5 °C
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1 – Programming switch 5 – Opens-Closes LEDs
2 – Curve adjustment 6 – Pump LED
3 – Plant factor K 7 – Setback temperature
4 – Power supply LED 8 – Normal temperature
1
2
4
7
3
5
6
8
B1 – Flow detector E – Burner Y – Valve
B2 – Outside detector M – Plant pump T – Transformer
R – Remote control
General layout Control of actuator
Control
with voltage other than 230 V
2 3
Y
Co
Op
Cl
L N
230 V~
5 6 7
T
2 3
L N
230 V~
6 - 7
In series with
boiler thermoistats
E
5 6 7
F
RTE 98
1 2 3 5 6 7 13 19 20
L N
230 V~
8 9 10
Y
M
Co
Op
Cl
14 1811
t˚
B2
12
B1
t˚
R
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Controller
Plant fl ow temperature detector B1
Outside temperature detector B2
– 1.5 mm
for power supply and the relay control outputs
– 1 mm
for the detectors and the remote control
RTE 98. is an analogue compensating controller for:
– compensated control of a heating circuit. Three-wire control of a motorized valve or On-Off of single-stage burners
Control curve
tem pe ra tu re
B1 – Flow detector
B2 – Outside detector
R – Remote control
C – Curve adjustment
E – Boiler
M – Pump
N – RTE 98. controller
Y – Valve
0 – Valve closed
10 – Valve open
Pb – Proportional band
On – Burner On
Off – Burner Off
Ta – Desired ambient temperature
te – Actual outside temperature
tm – Actual flow temperature
Tm – Desired flow temperature
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– Red riders : start of “Normal” operation
– Blue riders : start of “Setback operation.
COSTER
ISO 9001:2000
®
THE INTER NATIONAL CERTIF ICATION NETWOR K
Registration Number: IT - 34674
CSQ - Certificate N. 9115.COEE
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