I have to replace a randall 4033 that was fitted in 1984. If a wiring centre is used follow the installation instructions included with that unit and not the wiring diagrams overleaf.
4033 User Guide Danfoss Randall
Randall 4033 wiring diagram. Our wiring diagrams section details a selection of key wiring diagrams focused around typical sundial s and y plans. Randall 4033 and sunvic 207xls. Randall rmt230 room stat 4033 terminals mains n supply l 2 core 3 or 4 core n n l l boiler pump permanent line supply for boiler if required wb12 wiring box. 6 wiring wiring 4033 3023 1201 12 34 5 678 91 0 sl ln bro wn orange gre y blue danfoss randall hp22 or hp28. Unit and not the wiring diagrams overleaf. Wiring wiring 4033 programmer wiring wiring 2 x 2 port valves 4033 terminals mains supply danfoss danfoss randall randall atc cylinder stat rmt230 room stat 2 core 3 core 3 core 2 core wb12 wiring box.
Wwwdanfoss randallcouk do a product search and the wiring diagram for 4033 is in there. The programming of my ch and hw system is controlled by a randalldanfoss 4033 unit. Image shown for illustration purposes only. Click the icon or the document title to download the pdf. Page 6 danfoss atc cylinder stat randall rmt230 room stat 2 core 3 core 3 core 2 core danfoss randall wb12 12 way junction box flying lead flying 3 or 4 core lead danfoss randall danfoss randall hp22 or hp28. Sun may 10 2009 353 pm location.
Jason7 newly registered member posts. Wiring terminals 3 and 5 are not internally connected to the programmer and may therefore be used as spare wiring terminals if required. Timer to randall 4033 ch control unit stopped. Description specification documents product description. A range of basic electro mechanical time controls for heating and domestic hot water systems noted for their ease of operation. Danfoss 4033 24hr mechanical programmer product code.
Heating water is able to be switched using the switches but i want to swap this timer out. The clock mechanism has just stopped working so it is no longer programmable although everything else is working fine. 9 posts page 1 of 1. I would like to know if the danfoss randall 4033 is a direct replacement. Questions about central heating and boiler questions in here please. Contains all the essential wiring diagrams across our range of heating controls.
On arrival i found that the timer dial on our randall 4033 timer is not spining although i can hear ticking. If so is the timercontrol unit a plug in that iscan i take the old unit off the terminal block and just replace itthis i could do without an electrician. I know that being an analogue system it is old technology but it does the job.
Gallery of Randall 4033 Wiring Diagram
