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NRP 1250
AERMEC NRP 1250 Technical Manual
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INRP260HzTY
. 1312. 5806717_03
MUL
TIPURPOSE UNITS FOR 2/4 - PIPE S
YS
TEMS - T
echnical manual
NRP 0800-1800
REVERSIBLE
HEA
T PUMPS
•
DESIGNED
FOR
2
AND
4
PIPE S
YS
TEMS F
OR
EXTERNAL INS
T
ALLA
TION
•
OUTDOOR
UNIT
•
HIGH
EFFICIENCIES
EN
2
Table of Contents
Table of Contents
3
General Warnings
4
Preserva on of the Documenta on
4
Installa on
4
Warranty
4
Warnings Regarding Safety and Installa on Standards
4
Product Iden Fi Ca on
4
Presenta on
5
For 2-Pipe Systems
5
For 4-Pipe Systems
5
Ceck List
5
Descrip on and Choice of the Unit
6
Basic Opera Ng Layout for 2-Pipe System
7
Basic Opera Ng Layout for 4-Pipe System
9
Descrip on of Components
11
Structure
11
Cooling Circuit
11
Water Features
11
Standard Hydraulic Circuit
11
Safety and Control Components
11
Electric Control and Power Board
11
Accessories
12
Mechanical Accessories
12
Electric Accessories
12
Technical Data
13
Opera Onal Limits
18
Cooling Mode
18
Hea Ng Mode
18
Correc Ve Factors for Data Diff Erent than Nominal in Cooling Mode
19
Cooling Capacity and Input Power
19
For ∆T Diff Erent from the Rated Value
19
Fouling Factors
19
Hea Ng Capacity and Input Power
20
For ∆T Diff Erent from the Rated Value
20
Fouling Factors
20
Correc Ve Coeffi Cients of Recovered Hea Ng Capacity
21
For ∆T Diff Erent from the Rated Value
21
11.9. Fouling Factors
21
Pressure Drop
22
Useful Sta C Pressures 2|4 Pipe System
24
Low Sta C Pressure Pumps in Cooling Mode - System Side
24
High Sta C Pressure Pumps in Cooling Mode - System Side
24
Low Sta C Pressure Pumps in Cooling Mode - Recovery Mode
25
High Sta C Pressure Pumps in Cooling Mode - Recovery Mode
25
Expansion Vessel Calibra on
26
Minimum Water Content
26
Ethylene Glycol
27
Propylenic Glycol
27
Sound Data
28
Control and Safety Parameters Calibra on
29
Part Load
30
Thermomagne C
31
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AERMEC NRP 1250 Specifications
General
Type
Air-to-Water Heat Pump
Cooling Capacity
27.5 kW
Heating Capacity
29.5 kW
Refrigerant
R410A
Power Supply
400V/3Ph/50Hz
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