Danfoss 3020P Assembly Instructions
3020P
Installation & User Instructions
electro-mechanical
24 hour timeswitch with
auxiliary heating switch
This product complies with the following EC Directives:
Electro-Magnetic Compatibility Directive.
(EMC) (2004/108/EC)
Low Voltage Directive.
(LVD) (2006/95/EC)
2
INDEX
Index
Installation
Productspecication 3
Installation 4
Wiring 5-6
User
Your timeswitch 7
Programmingtheunit 7-8
Setting the clock 8
Using the timeswitch 9
Contactdetails 12
3
Specication
Power supply 230±15%Vac,50/60Hz
Switchaction 1xSPST,type1B
Switchrating
Max264Vac,50/60Hz,3(1)A
Timingaccuracy ±1min/month
Enclosurerating IP30
Max.ambienttemperature 55°C
Dimensions,mm(W,H,D) 102 x 210 x 60
Designstandard EN60730-2-7
Construction Class1
ControlPollutionSituation Degree 2
RatedImpulseVoltage 2.5kV
BallPressureTest 75°C
Product specication
Please Note:
This product should only be installed by a qualied
electrician or competent heating installer, and
should be in accordance with the current edition of
the IEEE wiring regulations.
Installation Instructions
Specication
4
Installation
Installation
1. Unscrewxingsringsfromselectorswitches,moveall
fourtappetstotopofdialandremoveoutercase.
2. Slackenthetwoscrewssecuringtheplug-inmodule
tobackplateandseparatemodulefrombackplateby
pullingupwards.
3. Fixbackplatetowall(3holexing).
4. Referringtowiringdiagramsonpages5and6make
electricalconnectionsasshown(asapplicable).
5. Securecablesundercableclamp.
6. Ensurealldustanddebrishasbeenclearedaway
fromtheareathenplugintimeswitchmoduleandre-
tightenthe2retainingscrews-donotovertighten.
7. Removecutoutfrombottomofoutercaseasrequired.
Retoutercaseandselectorswitchxingrings.
Checkthatoutercasesitssquarelyonbodyandisnot
distortedbyanunevenwallsurface.
8. Rotatedialclockwisethroughatleastonecomplete
revolutionandcheckthatallfourtappetsareclearof
outercaseaperture.
9. Switchonmains,turnmainselectorswitchto‘ON’and
lightboileraccordingtomanufacturer’sinstructions.
OperateHeatingSwitchtocheckpump/fan.
10. Turnmainselectorswitchto‘TIMED’androtatedial
clockwisemanuallythroughatleastonecomplete
revolutiontocheckthateachtappetstrikestheindex
wheelcleanlyandoperatestheboiler/pumpcorrectly
accordingtothetimessetonthedial.
5
Wiring
Wiring
3020P
Terminals 3 and 5 are not internally connected to
the programmer and may therefore be used as
spare wiring terminals if required.
!
6
2
4
1
(N)
2
1
3
1 234567
12345678910
S/L LN
NN
LL
Brown
Orange
Grey
Blue
Brown
Orange
Grey
Blue
Selector
Switch
Heating
Switch
Timed
OFF
ON
3020P
Te rminals
Mains
Supply
N
L
Danfoss Randall
ATC Cylinder Stat
3 core 2 core +
3 core 2 core
3 or 4 core
Flying lead Flying
lead
Danfoss Randall
HP22 or HP28
SRZV (Hot Water)
Danfoss Randall
HP22 or HP28
SRZV (Heating)
Danf
oss Randall WB12
12-w
ay junction box
Danfoss
Randall
RMT230
Room Stat
Permanent line
supply for boiler
if required
Boiler Pump
Wiring continued
Wiring
7
User Instructions
Your timeswitch
The3020Ptimeswitchallowsyoutoswitchyourhotwater
andheatingonandoffattimesthatsuityou.
Fourtappetsonthetimingdialletyoudecidewhenyou
wantyourhotwaterandheatingtocomeonandgooff
eachday.Thetimeswitchprovides2ONtimesand2OFF
timesperday.Usingtwosimpleswitchesyoucanrunthe
systematthesettimes,constantlyONorconstantlyOFF.
Duringthesummerthecentralheatingcanbeturnedoff,
whilststillcontrollingthehotwateratthesettimes.
Your Timeswitch & Programming the unit
Programming the unit
TherearefourTAPPETSonyourtimingdial,tworedand
twoblue:
o the redtappetsaretheON switches
o the bluetappetsaretheOFF switches
1. Holdthecentralblack&
silverknobwithonehand
andmovetheredtappet
marked‘A’clockwise to
thetimeyouwantyour
HEATING/HOTWATERto
switch oninthemorning.
NB.youmayndthetappetsquitestiff,soyoumay
havetopushthemquitermlytomovethem.
8
Programming the unit & Setting the clock
2 Stillholdingthecentralknob,movethebluetappet
marked‘B’tothetimeyouwantyourHEATING/HOT
WATERtoswitchoffinthemorning.
3 Youcansetyourothertwotappetsinthesameway
tosetyourHEATING/HOTWATERfortheafternoon
orevening.
EXAMPLE
(NB. Clock is in 24 hour mode)
IfyouwantyourheatingandhotwaterONbetween
7amand10amandONagainbetween5pmand
11pm,settappetsasfollows:
Aat1stONtime=7
Bat1stOFFtime=10
Cat2ndONtime=17
Dat2ndOFFtime=23
Setting the Clock
o Turnthedialclockwise
until the correct time
is lined up with the dot
labelledTIME
NB. clock is in 24 hour
mode
REMEMBER
You will have to reset the time after a power
cut and also when the clocks change in
Spring and Autumn
!
9
Using the Timeswitch
The 2 switches are used to select how the 3020P controls
your hot water and heating. The heating and hot water can be
operated together or the water can be controlled on its own
(i.e. during the summer when only hot water is required).
Left-hand switch
oOFF -thesystemismanuallyswitchedOFFand
willstayoffuntilyouchangethepositionoftheswitch
oTIMED-thesystemwillcomeonandgooffatthe
timesyouhaveprogrammed
oON-thesystemwillcomeonmanuallyandstay
onconstantlyuntilyouchangethepositionofthe
switch
Right-hand switch
oWATER + HEATING -bothheatingandhotwaterare
controlledaccordingtothesetprogramme
oWATER ONLY -heatingisturnedoffandonlythehot
wateriscontrolledaccordingtothesetprogramme
(for Summer use)
Using the timeswitch
WATER
+
HEATING
WATER
ONLY
ON
OFF
TIMED
WATER
+
HEATING
WATER
ONLY
ON
OFF
TIMED
10
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