Hydraulic Schemes; Scheme 1 - Salus WT100 Operation And Installation Manual

Hydraulic schemes

Scheme 1

Hydraulic scheme with of the four-way valve controlling the central heating circuit or floor circuit
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Legend:
TP – room thermostat (NO-NC)
T1 – heating circuit temperature sensor type CT10
T2 – external temperature sensor (weather) type CT6-P
T3 – return temperature sensor type CT10
T4 – heat source temperature sensor type CT10
P – pump heating circuit
SM – four-way valve + actuator
1 – heat source with (S) ON-OFF contact (gas- or oil- boiler)
2 – relief valve different pressure.
RECOMMENDED SETTINGS:
Parameter
Kind of the system
Max. temperature
Room thermostat
Start pump temp.
Return sensor
In order to improve water flow in gravitational circuit of the boiler use large nominal DN cross-
sections of pipes and the four-way valve, avoid numerous elbows and cross-section reductions, apply
other rules regarding construction of gravitational systems, e.g. keeping of gradients, etc. In case
the return temperature sensor is mounted on the pipe - provide proper heat insulation to isolate it
from the environment and improve its thermal contact with the pipe by applying of the thermal
paste. The heat source preset temperature has to be high enough to ensure enough heating power
for the heating circuits while heating the return water.
1
The presented hydraulic diagram does not replace central heating engineering design and may be used for
information purposes only
Setting
Radiators system
(Underfloor heating)
80ºC (45ºC)
ON
55ºC (20ºC)
ON
!
Service settings  Kind of the system
Service settings  Heating circuit
Service settings  Room thermostat
Service settings  Heating circuit
Service settings  Protection
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