Road tow compressor

[spiders]

hi quick question for you all is it possible to by pass the Rev up button on them?

 

[Mursal]

The "Rev up button" is used to load the compressor and make air.
If you want the join the wires, yes you can.
Otherwise I'm not sure what you intend to do?

 

[spiders]

The "Rev up button" is used to load the compressor and make air.
If you want the join the wires, yes you can.
Otherwise I'm not sure what you intend to do?

Hi thanks, is it as simple as joining 2 wires I've not looked yet, I've bought a remote control slurry pumpset and it will be fitted with remote start of the compressor but they tell me they can't mimic the Rev up button so I either change it to a compressor without button or bypass the one I got!

 

[Mursal]

Do you know the make / model of compressor.
Some cant start in the rev up / loaded position, as the engine will stall.

 

[davidroberts30]

Hi thanks, is it as simple as joining 2 wires I've not looked yet, I've bought a remote control slurry pumpset and it will be fitted with remote start of the compressor but they tell me they can't mimic the Rev up button so I either change it to a compressor without button or bypass the one I got!

You need a hydrovane then
As it starts it pressuries its self the will auto rev as soon as you open the demand for air

 

[Peppa pig]

Hi thanks, is it as simple as joining 2 wires I've not looked yet, I've bought a remote control slurry pumpset and it will be fitted with remote start of the compressor but they tell me they can't mimic the Rev up button so I either change it to a compressor without button or bypass the one I got!

Whose telling you that??? the ingeroll rand has a button that revs up through the remote control on mine

 

[7600-four pilot]

Kaiser is auto-rev, start..........fill............ready to go.................. all in 6 seconds, only use ours as a breaker mind. Supposed to have a defrost mechanism where by it passes warm air down the tube to the jack hammer but it is intermittent below 5°

 

[Pheasant Surprise]

Hi thanks, is it as simple as joining 2 wires I've not looked yet, I've bought a remote control slurry pumpset and it will be fitted with remote start of the compressor but they tell me they can't mimic the Rev up button so I either change it to a compressor without button or bypass the one I got!

As said on a rotary screw compressor you bring the compressor “on load” by operating the butterfly/throttle/poppet valve on top of the screw unit intake.

These are invariably done through pneumatic control lines via a pressure control valve on or near the separator pot. The actual sequence will involve the engine revs simultaneously increasing, as the unit is loaded again done via pneumatic actuator on the injection fuel rack. It’s a “closed loop” pneumatic control.

Any remote control system would really need 3 sets of dry contacts to be effective - one set to energise the unit, one set for start and the last set for load/unload.

How you wire those in is specific to the compressor and whether you need extras like a pneumatic solenoid to replace the operation of a manual button/valve for load operation arrangement.

 

[spiders]

Whose telling you that??? the ingeroll rand has a button that revs up through the remote control on mine

Sales at storth but they are looking into it.

 

[spiders]

You need a hydrovane then
As it starts it pressuries its self the will auto rev as soon as you open the demand for air

Can you get 250 cfm hydrovanes?

 

[spiders]

Do you know the make / model of compressor.
Some cant start in the rev up / loaded position, as the engine will stall.

Currently got a compair 37 but may upgrade soon

 

[Mursal]

Is it just that the lads fitting the remote are short channels to work the rev up switch?
Or why cant the fit a rev up switch on the remote I wonder?
Sorry, I must be missing something ............

 

[spiders]

Is it just that the lads fitting the remote are short channels to work the rev up switch?
Or why cant the fit a rev up switch on the remote I wonder?
Sorry, I must be missing something ............

I'm not sure either, they are going back to the guys who make remote to see if something can be done.

 

[Pheasant Surprise]

I'm not sure either, they are going back to the guys who make remote to see if something can be done.

Here is the electrical diagram and oil/air/fuel circuits from a CompAir 37:

Electrical Circuit:

Electrical Circuit Parts description:

Oil / Air / Fuel Circuit:

Oil / Air / Fuel Parts Description:

Illustrated Parts Manual in the attached PDF.

 

[Pheasant Surprise]

Further to last post, the C37 control panel parts diagram is shown on page 24. Behind the push button on the right side of the control panel is a manual pneumatic valve that operates the “on-load” function for the compressor - part no. 23.

Think these C37 units were built from around ‘97 to 2003. The 12v solenoid and electric push button “on-load” control looks like it was fitted to the later C38 compressors built from about 2004. So if you wanted to remotely control the “on-load” function on your compressor, would need to retrofit and plumb in a 12v solenoid pneumatic valve

If this was plumbed in parallel with the existing manual button/valve then would enable the existing manual control, using the button on the compressor panel, as well now you would have automatic control using a set of relay contacts to switch the new solenoid valve.

From what I can see there are three switches on the control panel. Does this look to be as it is on yours (from left to right)?

(a) 3-way switch to energise the compressor (ignition on)
(b) oil-pressure switch override toggle
(c) engine start toggle

So you would need to incorporate remote control relay contacts for the above together with one for the “on-load” solenoid valve, plastic tubing and any banjo and press-fit airline fittings.

 

[davidroberts30]

Can you get 250 cfm hydrovanes?

Not sure
I got a 120 and ive seen 180s

 

[Billydooker]

All u need is a relay timer. I joined the wires on mine when I first got going with my remote slurry setup so it reved up straight away which was ok but on a cold morning it would stall under the load.
Wire a timer relay into the excite wire on the starter so it starts a 60 second delay once the compressors started. Then it’ll load up once she’s had a chance to get warmed up a bit.

 

[Mursal]

@Pheasant Surprise I hadn't though of it being an air switch, thanks.
That explains why they couldn't connect the remote to it ...............

 

[Pheasant Surprise]

@Pheasant Surprise I hadn't though of it being an air switch, thanks.
That explains why they couldn't connect the remote to it ...............

Indeed and “they” probably don’t won’t the hassle of plumbing in pneumatic solenoid valve, but it could be done, not beyond the wit of man that one.

Anyhow sounds like the OP is ambivalent...and maybe wants to get a bigger unit in which case it might be easier to find a slightly later model (post 2004) when solenoid operated “on load” would make it a doddle.

 

[Mursal]

Go handy with the big words ........ ...