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| ET 910.11 consists of 15 different training panels that can be mounted modularly on the basic unit ET 910. These panels enlarge the scope of experiments of realised with the basic unit ET 910, training panels included in ET 910.10 and accessories in ET 910.12. ET 910.11 comprises more complex refrigerant components as capacity controller, suction pressure controller, defrost timer, four-way reversing valve and case controller. A four-way reversing valve is used to reverse the cycle. A frozen evaporator can be defrosted with a reversed cycle. The evaporator is then temporarily used as a condenser. |
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Learning Objectives / Experiments |
- Layout of different refrigerant cycles
- Layout and functioning of
controller for evaporation pressure and suction pressure
capacity controller and refrigeration (case) controller
manual valve and post injection valve solenoid valve with coil
4-way reversing valve; electric thermostat
liquid separator
power contactor and auxiliary contactor
time lag relay
defrost timer |
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Features
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| * Experiments with complex refrigeration systems |
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| Specification |
[1] Additional set to design refrigeration systems
[2] Post-injection valve -45…35°C
[3] Case controller with PTC sensor, -19…99°C
[4] Defrost timer, index increment 30min
[5] Time lag relay, response delay 0.05s...100h
[6] 4-way-reversing valve, solenoid valves
[7] Electric thermostat
[8] Power contactor and auxiliary contactor |
| Technical Data |
Output of the controllers at t0=-10°C, tc=25°C:
- evaporation pressure: 2.8kW at Δp=0.2bar
- intake pressure: 5.3kW at Δp=0.2bar
- capacity 4.8kW at offset=0.7bar
liquid separator 0.3ltr, max. 28bar |
| Scope of Delivery |
| 15 training panels |
| Order Details |
061.91011 ET 910.11 Set of Training Panels, Expansion
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