Operating Instructions and Installation Instructions

4
Installation
Installation
1. Unscrewxingringsfromselectorswitches,moveall
fourtappetstotopofdialandremoveoutercase.
2. Slackentwoscrewssecuringplug-inmoduleto
backplateandseparatemodulefrombackplateby
pullingupwards.
3. Fixbackplatetowall(3holexing).
4. Wiremains,motorisedvalve(s),thermostat(s)
accordingtoinstructionsshownonpage6-7.
5. Securecablesunderclampbar.
6. Ensurealldustanddebrishasbeenclearedaway
fromtheareathenpluginprogrammermoduleand
re-tightenthe2retainingscrews-donotovertighten.
7. Switchonmains,turnbothselectorswitchesto
‘ON’andlightupboileraccordingtomanufacturer’s
instructions.
8. Withbothroomandcylinderthermostatsturnedupto
maximum,checktheswitchingactionofthe4033with
aneonscrewdriverortestlamp.
 NOTE:ThisisaClass1productandmustbeearthed.
WATER SWITCH
 (a) WithselectorswitchinONposition,terminal4
 shouldbeLIVE.
 (b) WithselectorswitchinOFFposition,terminal5
 shouldbeLIVE.
(c) With selector switch in TIMEDposition,terminal
 4shouldbeLIVEbetweentappetsA-BandC-D
 andterminal5shouldbeLIVEbetweentappets
 B-CandD-A.