Product Description - Danfoss CCR3 Bedienungsanleitung

CCR3 Controller
ENGLISH

1. Product description

2. Application
3. Technical data: CCR3 Controller
4 | © Danfoss | 2016.10
The CCR3 Controller is a controller used to control
return temperature in one pipe heating systems
with functions such as temperature registration
and monitoring riser temperature. The controller
is connected to thermo actuators type TWA-Z (NO)
and remote temperature sensors PT1000, type
ESMC installed on each riser.
CCR 3 controller is part of AB-QTE solution for
one-pipe heating systems. It converts one-pipe
heating system (usually constant flow system)
into efficient variable flow system. This innovative
solution dynamically controls the flow in the
riser according to the load in risers by return
temperature control. There are few basic rules to
be followed, even more valid in case of renovation:
• Set AB-QM according to the required heat load
of the riser/loop.
• Ensure correct radiator a bypass flow setting
(typically around 25-35 %). If the resistance of
the radiator is much too high compared to the
bypass this may result in underflow through
radiator if the flow in riser/loop is reduced.
Temperature sensor (S0, S1-S16)
Temperature range (registration)
Measuring accuracy
Inputs: B1 and B2
Number of control valves (risers)
Output signal to actuators (Triac type)
Alarm signal output (Triac type)
Relay output
OC output (Transistor type)
Type of memory card (included)
Maximum memory card
Timer: Real time clock
Ambient temperature
Transport temperature
IP rating
Power supply
Power consumption
Weight
Installation
• Optimise flow temperature that is driven by
substation control (too high flow temperature
can influence efficiency of first radiators in the
riser/loop and result in oscillation of flow).
• Optimise return temperature that is driven by
CCR 3 (too high return temperature can result in
lower energy efficiency).
• Install temperature sensor in front of AB-QM
as close to last radiator in the riser/loop as
possible.
Following above rules will ensure optimal control
performance of CCR3 as well as energy efficiency
and reliability of heating systems. For further
application insights please contact Danfoss
representative.
–
Pt1000, S0 type ESMC/ESM11, S1-S16 – type ESMC
–20 °C ... +120 °C
+/- 0,5 K
Free contact (5 V 1 mA)
16 basic, additional 16 with parallel connection ( 32 all together ,
one temperature sensor is used as common for two risers )
24 VAC max. 1 A
24 VAC max. 1 A
0-24 VAC/DC max. 1A
0-20 VDC NPN Open collector max. 200 mA
SD
2 GB (included)
–
Built-in battery powered for 10 years
0 ... +50 °C ( for CCR3 only. The ambient temperature for actuators
TWA-Z (NO) should not be above 30 °C)
–10 ... +60 °C
IP 20
24 VAC
6 VA
0,9 kg
DIN rail 35 mm
VI.D3.A3.02