Operation Manual
Part Number 80-0111-9 6/11 187
QM20/QM30/QM45
Do not purge refrigerant to the atmosphere. Capture
refrigerant using recovery equipment. Follow the
manufacturer’s recommendations.
CONNECTIONS
The QM series ice machines are critically charged.
There are no refrigerant access ports on QM series ice
machines.
1. Locate the high and low side process tubes.
2. Install a piercing valve (saddle valve) on both the
high and low side process tubes.
Important
Manitowoc Ice assumes no responsibility for the
use of contaminated refrigerant. Damage
resulting from the use of contaminated refrigerant
is the sole responsibility of the servicing company.
Important
Replace the liquid line drier before evacuating
and recharging. Use only a Manitowoc (O.E.M.)
liquid line filter drier to prevent voiding the
warranty.
Important
Remove piercing valves after charging. Unit is
critically charged.
Important
Purge system with nitrogen while brazing to
prevent build up of copper oxide in the
refrigeration system.