Vaillant geoTHERM VWS Series, Руководство по установке

Страница: 67 / 92

67
Installation instructions geoTHERM VWS/VWW 0020057444_01
Parameters Description Factory setting
Minimum flow temp.
Maximum flow temp. Minimum/Maximum temperature:
Setting the limiting temperatures (min. and max.) that the
heating circuit can request.
Together with the maximum temperature, the value for
the floor protection switching is also calculated
(max. HK temp. + Compr. hyst 2K).
15 °C
43 °C
Pre-loading time Pre-loading time:
To take account of the inertia of the underfloor heating,
you can manually set a pre-heat before the start of the
programmed heating time.
0 hrs.
CH run in HW mode 20r.p.m.
Max DHW load time 40r.p.m. Max. heating time = Maximum time after which the cylin-
der heating operation switches back on when there is still
a parallel demand present for the cylinder.
Max. DHW load time: = Time after which the operation
switches from cylinder loading to heating mode, when
there is a parallel demand for heating present.
20 min
40 mins
Compressor hyster. Compressor hysteresis (only for hydraulic plans 1 and 3):
Forced switch-on of the compressor when:
Current flow temperature < Setpoint flow temperature -
Hysteresis
Forced switch-off of the compressor when:
Current flow temperature > Setpoint flow tempe
Hysteresis 7 K
Compressor starts Comp. starts/h: max. allowable no. of compressor starts
per hour. (3-5). 3
Max. CH return temp. HK 46°C Max. CH return temp. HK: Sets the return temperature
limits for compressor operation. This function should pre-
vent unnecessary short-term operation of the compres-
sor. 46 °C
Delta T. T3-T7 Delta T. T3-T7 : Max. permissible difference between the
heat source inlet and outlet temperatures. An error mes-
sage appears and the compressor switches off if it is ex-
ceeded.
The function is deactivated if 20 K is set.
20 K
Brine pump pre-run Brine pump pre-run: Interval by which the brine pump
switches on ahead of the compressor.
1 min
Temperature fault detection after Temp. fault detection: If the setpoint for the flow temper-
ature of a heating circuit is not reached after the preset
time, a corresponding error message appears in the dis-
play and the error is stored in the error list (display of the
last ten errors).
This function can be switched on or off. Off
Next service due Quick test. With "Next service due" ON, the time intervals
for the energy balance integral are changed from 1 minute
to 1 second and the energy balancing is thus acclerated by
a factor of 60. The minimum run time of 4 minutes and
the minimum off time of 5 minutes for the compressor
are unchanged. —
Table 8.7 Parameters that can be set with vrDIALOG 810/2
(cont.)
Controller 8