JUN-AIR JVac Dental Vacuum Suction System - Manual (Page 21)

21
© 2012, JUN-AIR
We reserve the right to make any alterations which may be due to any technical improvements
Printed in the USA
JUN-AIR Dental Vacuum Suction System User Guide CI-100A (Rev B)
Problem Possible Cause(s) Possible Solution(s)
4. Unit cuts in and out a. Tank drain is clogged, only allowing
a portion of the waste material to go
down the drain during the units off
period
a. Clean and remove excess solid materials from tank
drain by rinsing tank out with pressurized water
b. Loose wire connection at remote
switch, hardwire circuit joint or in
system electrical box
b. Check that the red and white remote switch wires
are tied together and the black remote switch wire
is insulated (no shortages). Use O&M electrical
schematic to assure all other wire connections are
correct.
c. Failed transformer or contactor c. Power unit down. Remove system electric panels
and visually inspect contactor/transformer for dam-
age (blackened components or burnt smell). Contact
your authorized distributor for replacement parts
5. Unit noisy a. Exhaust plumbing not securely fas-
tened to unit
a. Power unit down. Manually check to make sure
exhaust plumbing is securely fastened to system and
supported within two feet of the system
b. No muffler Installed b. Install muffler
c. Short exhaust pipe run c. Contact distributor about potential exhaust pipe op-
tions (secondary external muffler)
d. Exhaust is not plumbed out of the
building/room
d. Contact plumber to have exhaust plumbed outside
of building per NFPA 99C standards
e. Relief valve is continuously relieving e. Open HVEs and/or SEs and check to see if the
relief valve is still opening and if sufficient vacuum
is supplied to the operatory lines, if so relief valve is
functioning properly
6. System leaks liquids a. Loose pipe connections a. Use soapy water to check for vacuum leaks in
plumbing. Replace leaking plumbing as needed
b. Tank lid not properly seated or fas-
tened to tank
b. Use soapy water to check for vacuum leaks on tank.
Tighten tank lid if leaks are found
c. Tank drain line plugged due to exces-
sive solids passing through system
c. Replace operatory strainer. Clean and remove
excess solid materials from tank drain by rinsing tank
out with pressurized water
d. Tank ball float failed d. Remove tank lid, check to make sure all PVC is still
attached to lid. If not, contact your authorized dis-
tributor for replacement parts
e. Tank check valve failure e. Run 1-2 gallons of water into tank and turn unit off.
If tank does not drain contact distributor or replace-
ment parts or service repair of existing parts