wavin DRT-200 - 6.3.1. Variable speed pump control; 6.4 Boiler;chiller control

W
a
vin Temp Manifold Installation Manualower
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info@wavin.com
www.wavincom.
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22
W
avin Temp Control Manualower
E-MAIL
info@wavin.com
www.wavincom.
TELEPHONE
+31(38)429411
6.3.1. Variable speed pump control
If a frequency changer pump is connected then a different
pump speed can be selected. This function can be utilized
w
hen only one pump is installed on a system and a higher
p
ump speed is required to increase the mass flow to run
t
he cooling effectively.
N
N
o
o
t
t
e
e
:
Must install relay to get a potential free contact
6
6
.
.
4
4
B
B
o
o
i
i
l
l
e
e
r
r
/
/
c
c
h
h
i
i
l
l
l
l
e
e
r
r
c
c
o
o
n
n
t
t
r
r
o
o
l
l
To start or stop the boiler/chiller the same connection as
the pump can be used .
N
N
o
o
t
t
e
e
:
A relay must be installed to give a potential free contact.
Output eight can be used to start or stop an energy sour
-
ce unit (boiler
, chiller) This output is active when any
thermostat has a heating or cooling request.
N
N
o
o
t
t
e
e
:
Output eight has a 230V supply. If a potential free contact
is r
equir
ed, then a r
elay must be installed.
The output is 230V same like the pump contr
ol. if any
thermostat has a request for heating or cooling then this
output will be 230V.