assab ultra 85 ???

[thebigcheese]

anyone outhere look after any assab ultra 85 low temp units.... need to no the correct charge for 404a on first stage

[marc5180]

Doesn't look like it thebigcheese

[thebigcheese]

ino fs this thing is doing my nut in its been ongoing now for around 4 weeks

[marc5180]

Silly question but have you searched the net?

[thebigcheese]

got it sorted anyway had abit of guesstomation and its at -75 again so il leave it at that

[richardb14]

ah the old TAS cabinets!! they used to manufacture the same cabinet for peter swan.

there is nothing set in stone for these cabinets, the pressures are all different. they usually run about 5psi suction pressure on the first stage, 2nd stage is R170, watch out for waxing inside the capillary on first stage its a common problem, you will need to change the capillary. in fact maybe that is your problem

[richardb14]

just another point to add - they dont work too well on R404A, but R507 works ok.

[thebigcheese]

yea mate capillary was bad it blocked a spin drier within two hours... its been awile now anyway so fingers crossed