Manitowoc Q130 series, Technician'S Handbook

Page: 187 / 236

Part Number 8001119 10/19 187
QM20/QM30/QM45
Do not purge refrigerant to the atmosphere. Capture
refrigerant using recovery equipment. Follow the
manufacturer’s recommendations.
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.
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.
CONNECTIONS
The QM series ice machines are critically charged.
There are no refrigerant access ports on QM series ice
machines.
Remove piercing valves after charging. Unit is
critically charged.
Purge system with nitrogen while brazing to
prevent build up of copper oxide in the
refrigeration system.
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
Important
Important
Important