Controls To Be Considered Before Commissioning; Commissioning; Service And Maintenance; Failure And Troubleshooting - UNTES URTP055 Instructions For Installation, Commisioning, Maintenance And Use

Power distribution in electric heaters is composed of two asymmetrical stages. The system activates
primarily the 1. Stage according to the requirements. By the requirement increases, the 1. Stage is shut down
and the 2. Stage is activated. In case the requirement exceeds the capacity of the 2. Stage, the desired
capacity is acquired by activating both stages (1+2). Stage capacity of additional heaters are as follows.
Type/Model [W]
Low Type 1.Stage
Low Type 2.Stage
High Type 1.Stage
High Type 2.Stage
* These capacities are given for 400V-3F-50Hz.

9.4. Controls to be Considered Before Commissioning

It should be made sure that stage connections of the 3
provided correctly.
It should be checked whether the electric supply connection is at ±%5 tension tolerance.

9.5. Commissioning

Please refer to the control panel section at the Section 12 for commissioning the unit.

9.6. Service and Maintenance

Please refer to the maintenance section mentioned at the Section 13 for service and maintenance the unit.

9.7. Failure and Troubleshooting

Please check the explanations under the title of "12.4. Alarm Management of Room Control Unit" for this
unit.
10. COMMISSIONING (COOLING OR HEAT PUMP)
Before commissioning the device, ensuring that all procedures about installation are gone through is
important in terms of a healthy operation. Necessary observations should be performed by a control list
prepared for this purpose. You may see a similar list prepared by us below;
Crankcase on cooling circuit of the device heater should be activated before technician to
commission the device arrives. This action should be taken at least twenty four hours
before the device is activated. By this means, compressor oil is heated and refrigerant is
evaporated. If this action isn't taken, compressor is exposed to the refrigerant in liquid
phase and may get damaged.
URTP URTP
055 070
6000 8000
13000 16000
11500 15000
22500 28000
URTP URTP
090 110
10000 13000
21000 25000
18000 22000
37000 45000
rd
phase, neutral and grounding connections, are
48
URTP URTP
140 180
16000 20000
32000 41000
30000 40000
55000 70000
URTP 230
26000
52000
50000
90000