Stulz CeilAir CW - Programming the Thermostat; A-Tech Controller; E² Controller; Decommissioning the Unit

66 OCH0006F08/13/2024
CEILAIR
®
CW & DX IOM
3.3 PROGRAMMING THE THERMOSTAT
3.3 Programming the Thermostat
3.3.1 ATech Controller
The ATech controller is a programmable thermostat that provides:
• Single- and dual-stage cooling control
• On / auto / intermittent / off modes of operation
• Continuous / auto / residual fan
• Day and time clock
• Service reminders
• Language and
o
C /
o
F display preference
• Security features
• Temperature setpoint override
See the Honeywell thermostat TH8110R1008 and TH8320R1003 User Manual for programming
instructions.
3.3.2 E² Controller
If the unit employs an E² controller, the controller was factory programmed based on the model of the A/C
unit and the optional features selected. Most applications require no field start-up or program adjustment
beyond setting the current date and time. Separate operating instructions for the E² controller have been
sent with your unit, including each feature’s factory “default” setting and the available adjustment range.
3.4 Decommissioning the Unit
Personnel performing the decommissioning must be completely familiar with the unit before starting.
Best practice requires all refrigerants be recovered safely; see section 3.4.1. Prior to recovery, an oil and
refrigerant sample should be taken in case analysis is required prior to reuse of the reclaimed refrigerant.
Electrical power must be available before decommissioning is started.
Follow these decommissioning guidelines:
1. Become familiar with the equipment and its operation.
2. Isolate the system electrically.
3. Before attempting the procedure ensure that:
• Mechanical handling equipment is available, if required, for handling refrigerant cylinders
• All required personal protective equipment is available and used correctly
• The recovery process is always supervised by trained personnel
• Recovery equipment and cylinders conform to the appropriate standards
4. Pump down the refrigerant system, if possible.
5. If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts of the
system.