48
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]
URTP
055
URTP
070
URTP
090
URTP
110
URTP
140
URTP
180
URTP 230
Low Type 1.Stage
6000
8000
10000
13000
16000
20000
26000
Low Type 2.Stage
13000
16000
21000
25000
32000
41000
52000
High Type 1.Stage
11500
15000
18000
22000
30000
40000
50000
High Type 2.Stage
22500
28000
37000
45000
55000
70000
90000
* 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
rd
phase, neutral and grounding connections, are
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.