Bacchus BCS1000 Installation Manual - page 6
6
Charging the System
1. Evacuate and pressure test the system. This can be
accomplished by charging with nitrogen to 75 lbs
and checking your gauges for any sign of a leak.
Evacuate the system to 500 microns.
2. Charge the system with R134A until the sight
glass goes clear. It is very important not to over-
charge this system. As soon as the bubbles in the
sight glass disappear, discontinue charging. Over-
charge will result in an ice block in the evaporator.
3. Adjust the TXV to 12-14 degrees of superheat.
Take your suction pressure and temperature reading at the condenser,
and add two pounds to it for the pressure drop.
Take the difference between actual temperature and
your reading from a PT chart to calculate.
4. System Start up. Before replacing stainless steel
enclosure cover, power up the system to make sure
water solenoid is opening correctly. The misting
nozzle will be open. Remove power and replace the
cover. Power up the evaporator, and let the system
pull down. At temp set point the refrigerant solenoid
will close and the system will pump down and shut
off the condensing unit.
5. Check level of safety float.
Breakers. We recommend a 30a fused disconnect.
Maintenance and Troubleshooting
Have your system checked each year by a certified refrigeration technician.
He should:
1. Clean the indoor and outdoor coils
2. Change the water filter on the Humidification models, and change out
the humidification mister head
3. Drain the Stainless steel sump (diagram #3), and clean it if necessary.
This will prevent any possible mold build up.
4. Check the operation of the condensate pump, and make sure the water
misting fitting is acting properly, by allowing water to flow thru it.
Clean with vinegar if clogged and change the water filter.
5. Check the electronic controller for any alarm conditions
6. Check the refrigerant level and system operating pressures.
7. Clean the water solenoid on a yearly basis, and change it out every two years.
Warning: If the water solenoid sticks open, overflow can result.