Cincinnati Sub-Zero ZP Series - Page 77

MAINTENANCE WITH Q & A
65
DAILY
1. Interior and Exterior Cleaning
a. Wipe or vacuum out all debris.
b. Clean interior surfaces with a damp cloth, mild detergent, or stainless
steel cleaner. Avoid cleaners that are abrasive or leave a residue. DO
NOT use steel wool.
c. Clean the chamber exterior and door gaskets with a damp cloth or a
mild detergent. If a detergent is used, test a small area to make sure it
does not damage the finish.
2. Fluid Levels (If Applicable)
Check the fluid levels daily.
3. Gas Monitor (Optional Equipment) Water Filter
If the chamber is equipped with a Gas Monitor, check the water
accumulation levels daily. Empty when full as required. Failure to follow this
procedure will result in damage to the Gas Monitor and is NOT covered
under warranty.
WEEKLY
4. R-404A Charge (If Applicable)
Check the sight glass for bubbles every 7 to 14 days. If bubbles are present,
the unit is low on refrigerant. Call a qualified service technician to add
refrigerant.
5. R-410A Charge (If Applicable)
Check the sight glass for bubbles every 7 to 14 days. If bubbles are present,
the unit is low on refrigerant. Call a qualified service technician to add
refrigerant.
6. System 2 (R-508B) Stand-By Pressure (If Applicable)
Check the pressure in the controller prior to starting the conditioning
system. A discharge pressure reading lower than the standby pressure on
the data plate could indicate a leak in the system. DO NOT START. To check
the stand-by pressure, power off the unit. Let the unit stand for 24 hours
(this will allow for full equalization). Check pressure reading on the gauges.
7. System 2 (R-23) Stand-By Pressure (If Applicable)
Check the pressure in the controller prior to starting the conditioning
system. A discharge pressure reading lower than the standby pressure on
the data plate could indicate a leak in the system. DO NOT START. To check
the stand-by pressure, power off the unit. Let the unit stand for 24 hours
(this will allow for full equalization). Check pressure reading on the gauges.
WARNING
Follow all OSHA and any
other applicable legal,
national and local codes,
regulations, and guidelines
for lockout/tagout when
servicing the equipment.
This includes a lockable
disconnect switch. Failure
to adhere to these
guidelines may result in
severe injury and/or death.
Failure to empty the Gas
Monitor Filter will damage
the Gas Monitor and if NOT
covered under warranty.
WARNING