Commissioning Procedure - Delabie SECURITHERM H9739 Manual De Instrucciones

3. Fit the filters supplied in the turning lock-nuts (for H9741, H9741S, H9752S and H9752P
they are integrated in the lock-nuts) and mount the mixer on the offset connectors so that
the hot water is delivered from the left and exits from the bottom outlet.
Mixers supplied with STOP/CHECK connectors (ref. 855755.2P/855755UK.2P): please see installation
guide supplied with connectors.
REMEMBER
• Our mixers must be installed by professional installers in accordance with current regulations
and recommendations in your country, and the specifications of the fluid engineer.
• Sizing the pipes correctly will avoid problems of flow rate, pressure loss and water hammer
(see calculation table in our brochure and online at www.delabie.com).
• Protect the installation with filters, water hammer absorbers and pressure reducers to reduce
the frequency of maintenance (recommended pressure from 1 to 5 bar maximum).
• Install stopcocks close to the mixer to facilitate maintenance.
• The pipework, filters, non-return valves, stopcocks, bib taps, cartridge and all sanitary fittings should
be checked at least once a year, and more frequently if necessary.
CALIBRATING THE TEMPERATURE (Fig. A)
Our mixers have a factory setting based on 3 bar pressure for both the hot and cold water supply
and a temperature of 65°C (+/- 5°C) for hot water and 15°C (+/- 5°C) for cold water.
If the conditions of use are different, the temperature of the mixed water can differ from the temperature
indicated on the control (38°C). The control lever should be repositioned to the corresponding temperature:
• Open the water and measure the temperature using a digital thermometer .
• Using a 2.5mm Allen key unscrew the grub screw  without removing it entirely and remove
the control knob.
• Turn the valve spindle  to the right to increase the temperature and to the left to lower it
(15° of rotation for 1°C of temperature).
Replace the control knob and check that the temperature stop does not exceed 40°C
for H9739/H9739S and 41°C for H9741/H9741S/H9741TP/H9752S/H9752P.

COMMISSIONING PROCEDURE

1. Check that the water supplies are appropriate for the installation of the TMV (see Table on the previous page).
1a. Check that the mixed water temperature is appropriate for the application; if required, adjust
the mixed water temperature up to a maximum application temperature (shower: 41°C max, washbasin:
41°C max, bath: from 44°C up to 46°C). Check that the supply pipework is free from debris or detritus.
1b. Carry out the following commissioning test sequence:
a. Record the temperature of the hot and cold water supplies adjacent to the TMV.
Record the pressures of the hot and cold water supplies at the inlets of the TMV.
b. For all outlets, measure the temperature of the mixed water at the maximum available flow and record.
c. Isolate the cold water supply to the mixing valve and observe the mixed water outlet.
1c. If there is a flow stream after 5 sec. then collect any water discharging into a suitably graduated measuring
vessel for 60 sec.; if the volume of water collected is greater than 120 ml then further investigation is needed.
1d. If there is no flow or if the volume of water collected is less than or equal to 120 ml, then restore
the cold water supply; after 15 sec. record the mixed water temperature.
1e. Verify that this temperature does not differ by more than 2°C from the temperature taken in1b
(this is a restoration test after a failure of the cold water supply and some deviation of the mixed water
outlet temperature may be expected).
1f. If the mixed water temperature differs by more than 2°C from the set temperature taken at 1b,
then recheck the supply conditions or recommission.