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
 Productspecication 3
 Installation 4
Wiring 5-6
User
Your timeswitch 7
 Programmingtheunit 7-8
Setting the clock 8
Using the timeswitch 9
 Contactdetails 12

3
Specication
Power supply 230±15%Vac,50/60Hz
Switchaction 1xSPST,type1B
Switchrating Max264Vac,50/60Hz,3(1)A
Timingaccuracy ±1min/month
Enclosurerating IP30
Max.ambienttemperature 55°C
Dimensions,mm(W,H,D) 102 x 210 x 60
Designstandard EN60730-2-7
Construction Class1
ControlPollutionSituation Degree 2
RatedImpulseVoltage 2.5kV
BallPressureTest 75°C
Product specication
Please Note:
This product should only be installed by a qualied
electrician or competent heating installer, and
should be in accordance with the current edition of
the IEEE wiring regulations.
Installation Instructions
Specication

4
Installation
Installation
1. Unscrewxingsringsfromselectorswitches,moveall
fourtappetstotopofdialandremoveoutercase.
2. Slackenthetwoscrewssecuringtheplug-inmodule
tobackplateandseparatemodulefrombackplateby
pullingupwards.
3. Fixbackplatetowall(3holexing).
4. Referringtowiringdiagramsonpages5and6make
electricalconnectionsasshown(asapplicable).
5. Securecablesundercableclamp.
6. Ensurealldustanddebrishasbeenclearedaway
fromtheareathenplugintimeswitchmoduleandre-
tightenthe2retainingscrews-donotovertighten.
7. Removecutoutfrombottomofoutercaseasrequired.
Retoutercaseandselectorswitchxingrings.
Checkthatoutercasesitssquarelyonbodyandisnot
distortedbyanunevenwallsurface.
8. Rotatedialclockwisethroughatleastonecomplete
revolutionandcheckthatallfourtappetsareclearof
outercaseaperture.
9. Switchonmains,turnmainselectorswitchto‘ON’and
lightboileraccordingtomanufacturer’sinstructions.
OperateHeatingSwitchtocheckpump/fan.
10. Turnmainselectorswitchto‘TIMED’androtatedial
clockwisemanuallythroughatleastonecomplete
revolutiontocheckthateachtappetstrikestheindex
wheelcleanlyandoperatestheboiler/pumpcorrectly
accordingtothetimessetonthedial.

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
The3020Ptimeswitchallowsyoutoswitchyourhotwater
andheatingonandoffattimesthatsuityou.
Fourtappetsonthetimingdialletyoudecidewhenyou
wantyourhotwaterandheatingtocomeonandgooff
eachday.Thetimeswitchprovides2ONtimesand2OFF
timesperday.Usingtwosimpleswitchesyoucanrunthe
systematthesettimes,constantlyONorconstantlyOFF.
Duringthesummerthecentralheatingcanbeturnedoff,
whilststillcontrollingthehotwateratthesettimes.
Your Timeswitch & Programming the unit
Programming the unit
TherearefourTAPPETSonyourtimingdial,tworedand
twoblue:
o the redtappetsaretheON switches
o the bluetappetsaretheOFF switches
1. Holdthecentralblack&
silverknobwithonehand
andmovetheredtappet
marked‘A’clockwise to
thetimeyouwantyour
HEATING/HOTWATERto
switch oninthemorning.
 NB.youmayndthetappetsquitestiff,soyoumay
havetopushthemquitermlytomovethem.

8
Programming the unit & Setting the clock
2 Stillholdingthecentralknob,movethebluetappet
 marked‘B’tothetimeyouwantyourHEATING/HOT
 WATERtoswitchoffinthemorning.
3 Youcansetyourothertwotappetsinthesameway
 tosetyourHEATING/HOTWATERfortheafternoon
 orevening.
EXAMPLE
(NB. Clock is in 24 hour mode)
 IfyouwantyourheatingandhotwaterONbetween
 7amand10amandONagainbetween5pmand
 11pm,settappetsasfollows:
  Aat1stONtime=7
  Bat1stOFFtime=10
  Cat2ndONtime=17
  Dat2ndOFFtime=23
Setting the Clock
o Turnthedialclockwise
until the correct time
is lined up with the dot
 labelledTIME
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 -thesystemismanuallyswitchedOFFand
 willstayoffuntilyouchangethepositionoftheswitch
oTIMED-thesystemwillcomeonandgooffatthe
 timesyouhaveprogrammed
oON-thesystemwillcomeonmanuallyandstay
 onconstantlyuntilyouchangethepositionofthe
switch
Right-hand switch
oWATER + HEATING -bothheatingandhotwaterare
 controlledaccordingtothesetprogramme
oWATER ONLY -heatingisturnedoffandonlythehot
 wateriscontrolledaccordingtothesetprogramme
(for Summer use)
Using the timeswitch
WATER
+
HEATING
WATER
ONLY
ON
OFF
TIMED
WATER
+
HEATING
WATER
ONLY
ON
OFF
TIMED

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