Table of Contents
Advertisement
Advertisement
Table of Contents
Related Manuals for Viessmann NC-Box
Summary of Contents for Viessmann NC-Box
- Page 1 VIESMANN Installation and service instructions for contractors NC-Box Pre-assembled unit for implementing the natural cooling function in conjunction with brine/water heat pumps up to 17 kW For applicability, see the last page NC-Box Please keep safe. 5675 869 GB 2/2015...
- Page 2 ■ installer or a qualified person authorised by the For replacement, use only spare parts supplied installer. or approved by Viessmann. Regulations to be observed National installation regulations ■ Statutory regulations for the prevention of accidents ■...
-
Page 3: Table Of Contents
..........10 – ■ Electrical connection ................12 Required connections ................. 12 ■ Power supply ..................14 Closing the NC-Box ................15 Commissioning and ........................16 adjustment Parts lists Overview of assemblies ................. 18 Parts not shown .................. 19 ■... -
Page 4: Information Symbols
The temperature level of the primary circuit is directly transferred to the cooling circuit for central cooling. Product validity Hydraulic connections The NC-Box can be used in conjunction with the fol- lowing heat pumps: The heating/cooling circuit or the separate cooling cir- Vitocal 200-G ■... -
Page 5: Preparing For Installation
Preparing for installation Hydraulic connection with on-site pipework 1. Fit the NC-Box near the heat pump on a wall capa- ■ Vitocal 222-G/242-G and Vitocal 333-G/343-G ble of bearing the load. ■ Vitocal 200-G, Vitocal 300-G and Vitocal 350-G with- out sufficient installation space above the heat 2. -
Page 6: Siting And Transport Requirements
Preparing for installation Siting and transport requirements Transport Please note Impacts, compression and tensile loads can cause damage to the outside panels of the appliance. Never apply loads/weight to the top, front or side panels of the appliance. Installation room requirements Please note Unfavourable ambient conditions can lead to malfunctions and appliance damage. -
Page 7: Installation Sequence
Installation sequence Fitting the NC-Box Installation without hydraulic connection set: ■ Fit the NC-Box near the heat pump on a wall capable of bearing the load. ■ Installation with hydraulic connection set: Fit the NC-Box above the heat pump with the clear- ances shown in Fig. -
Page 8: Opening The Nc-Box
Installation sequence Opening the NC-Box Fig.3 Note Power cable, heat pump connecting cables (NC Should there be insufficient space for working, front signal) and contact humidistat (connected at the casing part can also be removed. First, remove factory) casing cover... -
Page 9: Required Connections
Installation sequence Hydraulic connection (cont.) Required connections Subject to the type of cooling circuit, the NC-Box can For this, note the following: be connected to the heat pump in two different ways. Seal the secondary circuit connector on the NC-Box. -
Page 10: Connection With Hydraulic Connection Set
In the delivered condition, the contact humidistat is the separate cooling circuit. located outside the NC-Box casing and is electrically Where the heating/cooling circuit extends over sev- connected at the control panel. The associated con- ■... - Page 11 (cont.) Panel with cable entries Contact humidistat connecting cable 1. Fit the contact humidistat above the NC-Box to the flow of the heating/cooling circuit or the separate cooling circuit. If necessary remove parts of the thermal installation in order to provide direct contact with the pipe.
-
Page 12: Electrical Connection
Required connections Heat pump connecting cable ("NC signal") KM BUS cable Switching signal 230 V~ for switching the NC-Box. The For switching the mixer extension kit in the NC-Box. natural cooling function is activated as soon as this signal is issued. - Page 13 Power supply 1/N/PE 230 V/50 Hz across ■ X2.1 and X2.2 via on-site power distribution board ■ Switching the NC-Box (NC signal) across X2.3 and X2.4 by the heat pump control unit X5 Earth conductor terminal strip "Vitotronic 200" service instructions...
-
Page 14: Power Supply
B RCD. Colour coding to IEC 60757 Connection information Brown ■ The power cable is connected to the NC-Box termi- Blue nal box and routed to the outside through the cable GNYE Green/yellow entry at the factory. -
Page 15: Closing The Nc-Box
X2.1 and X2.2 via on-site power distribution Power supply 1/N/PE 230 V/50 Hz board ■ Switching the NC-Box (NC signal) across X2.3 and X2.4 by the heat pump control unit X5 Terminal strip for earth conductor Power distribution board (on-site) Closing the NC-Box Fit in reverse order to Fig. -
Page 16: Commissioning And Adjustment
Commissioning and adjustment Commissioning and adjustment 1. Fill and vent the primary and secondary circuits of the system and check for leaks. 2. Set the parameters for cooling operation at the heat pump control unit. "Vitotronic 200" service instructions Fig.8 Secondary circuit BDF valve (heating water) Primary circuit BDF valve (brine) - Page 17 Commissioning and adjustment Commissioning and adjustment (cont.)
-
Page 18: Parts Lists Overview Of Assemblies
Parts lists Overview of assemblies The following details are required when ordering parts: ■ Serial no. (see type plate ■ Assembly (from this parts list) ■ Position number of the individual part within the assembly (from this parts list) Fig.9 Type plate Electrical equipment assembly Hydraulic assembly... -
Page 19: Parts Not Shown
The following details are required when ordering parts: ■ Serial no. (see type plate in Fig. 9) ■ Position number of the part (from this parts list) Pos. Part 0004 Touch-up paint stick, Vitosilver 0005 NC-Box installation and service instructions 0006 Touch-up spray paint, Vitosilver... -
Page 20: Hydraulics
Parts lists Hydraulics 0024 0015 0014 0011 0026 0016 0017 0003 0019 0002 0023 0018 0029 0016 0019 0012 0016 0009 0016 0016 0005 0029 0025 0008 0016 0006 0016 0010 0021 0027 0016 0022 0004 0020 0029 0016 0007 0012 0016 0029... - Page 21 Parts lists Hydraulics (cont.) Pos. Part 0001 EPP casing 0002 High efficiency [HE] circulation pump 0003 Plate heat exchanger 0004 2-way motorised ball valve 0005 2-way motorised ball valve 0006 Pipe, heating water outlet 0007 Pipe bends, brine outlet 0008 Pipe, heating water inlet 0009 Pipe, brine inlet...
-
Page 22: Electrical Equipment
Parts lists Electrical equipment 0010 0009 0008 0001 0006 0002 0003 0007 0005 Fig.11... - Page 23 Parts lists Electrical equipment (cont.) Pos. Part 0001 NC PCB 0002 Strain relief fitting M16 0003 Plastic nut M16 x 1.5 mm 0005 Frost stat connecting cable 0006 Contact humidistat connecting cable 0007 Power cable 0008 High efficiency circulation pump connecting cable, 960 mm long 0009 High efficiency circulation pump connecting cable, 700 mm long 0010...
-
Page 24: Connection Set
Parts lists Connection set 0003 0002 0001 Fig.12... - Page 25 Parts lists Connection set (cont.) Pos. Part 0001 Connection line, secondary circuit return to the heat pump 0002 Connection line, secondary circuit flow to the NC-Box 0003 Connection line, primary circuit flow (heat pump brine inlet)
-
Page 26: Connection And Wiring Dia
Connection and wiring diagram Fig.13 Contact humidistat 24 V /10 mA Frost protection valve (brine) – Frost stat 230 V~/1 A 3-way diverter valve (heating/cooling) NC-Box switching (NC signal) Primary cooling circuit pump Power supply 1/N/PE 230 V/50 Hz Secondary cooling circuit pump... -
Page 27: Specification
2 to 30 ■ Storage and transport °C 30 to 60 – ■ Hydraulic connections Primary circuit flow (NC-Box brine inlet/outlet) ½ Flow/return, heating/cooling circuit, separate cooling circuit Flow/return, secondary circuit to the heat pump Power supply 1/N/PE 230 V/50 Hz... -
Page 28: Declaration Of Conformity
Declaration of conformity Declaration of conformity We, Viessmann Werke GmbH & Co KG, D-35107 Allendorf, confirm as sole responsible body that the product NC-Box complies with the following standards: EN 13 779 EN 55014-2; 2002-08 EN 14 511 EN 60335-1:1994 + A11:1994 + A1:1996 + A12:1996 + A13:1998 + A14:1998 + A15:2000 + A16:2001 EN 50366;... -
Page 29: Keyword Index
Frost protection valve..........26 Separate cooling circuit..........9 Frost stat.............. 21, 26 Siting................6 Function............... 4 Spare parts..............18 Fuse................15 Specification...............27 Switching NC-Box..........13, 15 Symbols............... 4 Heat pump control unit......... 14, 15 System filling.............. 16 Heat pump control unit fuse protection...... 14... - Page 30 Keyword index Keyword index (cont.) Technical connection requirements......14 Validity................4 Terminal box........8, 11, 13, 15, 21, 23 VDE regulations............14 Terminal strip – Earth conductor............13 – Neutral conductor............13 Wall mounting bracket..........21 Tightening torques............10 Weight................ 27 Transport..............6 Type plate..............18 Underfloor heating............9...
- Page 32 Applicability Serial No.: 7554883 Viessmann Werke GmbH&Co KG Viessmann Limited D-35107 Allendorf Hortonwood 30, Telford Telephone: +49 6452 70-0 Shropshire, TF1 7YP, GB Fax: +49 6452 70-2780 Telephone: +44 1952 675000 www.viessmann.com Fax: +44 1952 675040 E-mail: info-uk@viessmann.com...