PREX H 3 COND
5.9 Probe and bulb positioning
The control panel is equipped with a temperature probe and three bulbs.
There are two wells "a" and "B" near the heating delivery "T1" (see Fig. 17).
IT IS MandaTorY to insert in the well "a" (Fig. 19) the temperature probe "4" and the safety thermostat bulb "3".
Insert in the well "B" (Fig. 18), the bulb of the 1st stage thermostat (1) and that of the 2nd stage thermostat (2).
Make sure the probe and bulbs reach the end of the sheath.
Place the capillaries of the bulbs and probe as shown in Fig. 20.
B
T1
fig. 17 - Probe and bulb wells
legend
1
Thermostat bulb 1st Stage
2
Thermostat bulb 2nd Stage
3
Safety Thermostat bulb
4
Temperature probe
IMPorTanT
To InSTall anoTHer TYPe of TeMPeraTure conTrol, IT IS neceSSarY To uSe and InSTall (aS PrevIouSlY de-
ScrIBed) a SafeTY THerMoSTaT coMPlYInG WITH THe currenT reGulaTIonS, WITH InTervenTIon TeMPeraTure
(SWITcHInG PoInT) = 110-6°c.
A
cod. 30902840 - Rev. 00 - 02/2018
fig. 18 - Well B
fig. 20
fig. 19 - Well a
EN
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