40
6.4
Adjustment of TMV
The ModuSat unit is fitted with an internal blending valve on the DHW outlet from the
integral storage tank. This enables the DHW storage temperature to be higher to improve
DHW recovery and draw off rates but also ensure that the DHW to outlets does not exceed
the design / safe temperatures as an additional fail safe protection.
The nominal parameters for the valve are as follows:
Cold supply water temperature
15
⁰
C +/- 2
⁰
C
Hot supply water temperature
75
⁰
C +/- 2
⁰
C
Nominal cold water pressure
3 Bar +/- 0.2 Bar
Nominal hot water pressure
3 Bar +/- 0.2 Bar
Blended flow rate
18 +/- 4
The water outlet set temperature is achieved within 15 seconds and the mixed water temp
is approximately
55
⁰
C +/-2°C
.
The default valve setting is
55
⁰
C if this needs adjustment this can be done by
loosening the top screw and turning the dial to the required setting. It should be noted that
as both pressure and flow rates influence the mixed water temperature it is most important
that these are checked and verified during installation / initial checks.
Please also note that there are tolerances within the temperature and flow settings as
detailed within the tables above.
Technical Characteristics
Working Range:
30÷65 °C
Max working temperature:
90 °C
Accuracy:
±2 °C
Max static pressure(structural pressure):
10
bar
Max working pressure:
5 bar
Please refer to the hydraulic layouts
on pages 5-7 with details of the
blending valve orientation.
Min
1 36°C
2 40°C
3 44°C
4 50°C
5 55°C
Max
