Anyone understand the markings on central heating pumps? - HotUKDeals
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Anyone understand the markings on central heating pumps?

csiman Avatar
banned8y, 2m agoPosted 8 years, 2 months ago
See the picture. I need to know what I should set mine to (either I, II or III). I have 6 double rads, 5 singles and 1 towel radiator.

What does the 'A' and 'W' mean next to 'RPM'.

Thanks.
csiman Avatar
banned8y, 2m agoPosted 8 years, 2 months ago
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banned#1
http://i280.photobucket.com/albums/kk173/csiman2/DSCF0677.jpg
banned#2
Asking as I think my pump might have gone. Turned CH on today and only rads upstairs heating up.

turned all upstairs rads off and downstairs ones started to heat up. Pump seems to feel very hot but is vibrating slightly when CH turned on suggesting the impeller is moving.
#3
Phone the number on the pump?
banned#4
starsparkle2311;3105572
You must have a big house!

not especially

1 single, 1 double in lounge
1 double in hall
1 double in kitchen
1 double in study
1 double in bed 1
1 single in dining room
1 single in bed 2
1 single in bed 3
1 single in bathroom
1 towel rad in en-suite

total = 5 doubles, 5 singles and 1 towel rad. Must have added up wrong initially. :oops:
[mod] 1 Like #5
The W will be the wattage output.......maybe the A is the translation in Ampage.

The further up you jig it on I, II, or III then the more energy you'll use. Depends what you are comfortable with and costs. :)
banned#6
thesaint;3105584
Phone the number on the pump?

I think I will email them as I doubt I'll understand the lingo :-D
banned#8
Syzable;3105606
The W will be the wattage output.......maybe the A is the translation in Ampage.

The further up you jig it on I, II, or III then the more energy you'll use. Depends what you are comfortable with and costs. :)

Makes sense. Thanks. I've just put it to 3 and downstairs rads heating up nicely. Gonna put the upstairs ones on now and see if downstairs starts cooling. If they do then I guess its an emergency callout to barclays (luckily its free under their additions account) ;-)
1 Like #9
defo ampage and watts
banned#10

Excellent! Thanks. Couldnt find it when I looked. :thumbsup:
#11
Hit it with an hammer, That usually works.

That's what council did when my mums pump went, It worked
[mod]#12
Hitting with a hammer does provide a temp fix sometimes as it frees everything up inside where it's jammed and furred up but it never lasts and will end up putting extra strain on other parts.
banned#13
Syzable;3105606
The W will be the wattage output.......maybe the A is the translation in Ampage.

The further up you jig it on I, II, or III then the more energy you'll use. Depends what you are comfortable with and costs. :)

Seems to be the opposite way around:-

Speed setting (Fig. 8)
The speed of the pump can be adjusted
with a 3-position rotary button. In
position 3 the speed is approx.
40...50% of the maximum speed with
the power consumption being reduced
to 50 %.
#14
Could actually be a valve, We had a problem that when hot water was on upstairs radiators came on. Turned out to be a faulty valve that had been leaking and got stuck.
#15
You don't need heating on, I'm sitting here in shorts!
banned#16
starsparkle2311
It's absolutely freezing here (up North), i've got a blanket wrapped round me, i'm typing to keep my hands warm, really bitter wind!


I know how you feel, i might put some pj's on :roll:
banned#17
Benjimoron;3105669
You don't need heating on, I'm sitting here in shorts!

its hot now lol

just pretty cold when I got up at 4am. Will turn it off once I know its all working. Better to test it out now than when I really need it on (and all the plumbers are booked for weeks as everyone else realises they have problems ;-)).
#18
starsparkle2311;3105687
It's absolutely freezing here (up North), i've got a blanket wrapped round me, i'm typing to keep my hands warm, really bitter wind!


Freezing in Bristol.....gonna have to wear a warm jacket when out tonight :?
banned#19
starsparkle2311;3105687
It's absolutely freezing here (up North), i've got a blanket wrapped round me, i'm typing to keep my hands warm, really bitter wind!

Just what is the definition of 'up north' ?

In my eyes, London is 'up north' ;-)
banned#20
choc1969
Freezing in Bristol.....gonna have to wear a warm jacket when out tonight :?


Drink plenty of cocktails they will keep you warm x x
#21
DLM;3105765
Drink plenty of cocktails they will keep you warm x x


That's the plan, cocktails to start :thumbsup:

no doubt I'll lose another coat tonight :oops:
[helper]#22
csiman
Seems to be the opposite way around:-

Speed setting (Fig. 8)
The speed of the pump can be adjusted
with a 3-position rotary button. In
position 3 the speed is approx.
40...50% of the maximum speed with
the power consumption being reduced
to 50 %.


As you say, the markings represent the speed of the pump which in turn affects the speed at which the water is circulated round the system. I've been told that leaving your heating off for 4/5 months leads to sludge collecting at the pump which causes them to fail.

If you have gate valves either side of the pump - if the pump does fail they are a doddle to replace....all you need is a couple of big spanners (and new pump)
#23
I always turn my heating on 30 minutes a month to prevent problems, does help having plumbers and Corgi guys in the family
#24
csiman
its hot now lol

just pretty cold when I got up at 4am. Will turn it off once I know its all working. Better to test it out now than when I really need it on (and all the plumbers are booked for weeks as everyone else realises they have problems ;-)).


Fair point.

Just got the thermometer out, 17.2 degrees in the lounge.
#25
DLM
I know how you feel, i might put some pj's on :roll:


"Might put some pj's on":?
Not wearing a lot at the moment then? ;-)
banned#26
Benjimoron;3106066
Fair point.

Just got the thermometer out, 17.2 degrees in the lounge.

Are you bored today ;-)

I might head up tesco to get fifa09 but just waiting to see if lovefilm send me it as its the only thing in my wanted list :)
#27
choc1969;3106054
I always turn my heating on 30 minutes a month to prevent problems, does help having plumbers and Corgi guys in the family

i think that is good advice as most bearings and seals sieze or leak if left idle for long periods :thumbsup:
banned#28
An Update.

I put the pump on to setting 3 (i'm sure it was always on that setting until a plumber came to service my boiler last month!) and all radiators now working. Gave the pump a few taps with a rubber hammer too for good measure.

THANKS ALL!

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