Riedel 2NK6 746W User manual

1
454107.66.01-02_GB
08.07.2015
Translation of the Original
NORTH AMERICA
Telefon: ++1-877 RIEDEL1
Telefon: ++1-877 - 743 - 3351
Telefax: ++1-734 - 595 - 9829
e- ail: s[email protected]
http://www.riedel-usa.co
ASSEMBLY INSTRUCTIONS FOR
PARTLY COMPLETED MACHINERY
FOR
WATER/AIR SPLIT COOLING SYSTEM
12 KW / 17 KW
Glen Di plex Deutschland G bH
Geschäftsbereich RIEDEL Kältetechnik
A Goldenen Feld 18
D-95326 Kul bach
Telefon: [phone] / 709 555
Telefax: +49 (0) 92 21 / 709 549
e- ail: [e-mail]
http://www.Riedel-Cooling.co
GDD Part Nu bers Sie ens Part Nu bers
2NK6 746W 10589726
2NK6 745-1W 10430821
2NK6 745-1A 10743384
2NK6 745S 07741577

2
454107.66.01-02_GB
01.07.2015
Translation of the Original
This docu ent was drawn up by the Technical Docu entation Dept. of Glen Di plex.
Glen Di plex reserves all rights to this docu entation, especially the right to reproduce,
distribute and translate this docu ent. This also applies in case of patent and industrial rights
applications. No part of this docu ent ay be reproduced, processed, copied or distributed by
either conventional or electronic eans without the prior written consent of Glen Di plex.
Subject to errors and technical changes.
Glen Di plex assu es no responsibility for any errors in this docu entation. To the extent
per issibly by law, Glen Di plex will not be liable for any warranty clai s for direct or indirect
da ages arising in connection with the supply or non-use of this docu entation.

3
454107.66.01-02_GB
01.07.2015
Translation of the Original
Table of Contents
1. For Your Safety 4
1.1 Regulations 4
1.2 Signs and Sy bols 5
1.3 Safety Notices 6
1.4 Handling of Refrigerant 7
1.5 Safety Require ents 7
1.6 Purpose of the Process Cooler 8
2. Description of the Process Cooler 9
2.1 Refrigeration Circuit 9
2.2 Cooling Water Circuit 9
2.3 Electrical / Control Equip ent 9
3. Technical Data 10
4. Transport and Storage 11
4.1 Transport Specifications 11
4.2 Indoor Units 2NK6 746W and 2NK6 745-1W 11
4.3 Outdoor Unit 2NK6 745-1A 12
4.4 Installation 12
5. Asse bly 16
5.1 Electrical Connection 16
5.2 Hydraulic Connection 17
5.3 Co issioning 18
5.3.1 Filling of Both Cooling Circuits 19
5.3.2 Draining of Both Cooling Circuits 21
6. Environ ental Require ents 22
7. Maintenance 22
8. Regular Inspections and Tests 23
9. Malfunctions / Troubleshooting 24
Appendix
R&I Flow Diagra
Sche atic Diagra s
Di ensions
EC Declaration
Sa ple Quick Reference Guide
Table of Contents
ENGLISH

4
454107.66.01-02_GB
01.07.2015
Translation of the Original
1. FOR YOUR SAFETY
1.1 Regulations
The design, construction and develop ent of the process cooler are in co pliance with the
following national and international regulations.
EC Directives / Standards
- EC Machinery Directive 2006/42/EC
- EC Low Voltage Directive 2006/95/EC
- EC Pressure Equip enht Directive 97/23/EC
International Directives / Standards
- UL 471 Co ercial Refrigerators and Freezers
Related Directives / Standards
(see also EC Declaration in the Appendix)
1. For Your Safety
ENGLISH

5
454107.66.01-02_GB
01.07.2015
Translation of the Original
1. For Your Safety
1.2 Signs and Sy bols
Throughout this anual, the infor ation and notices below are identified by graphical
sy bols:
Danger!
Safety note pointing out an i inent danger. Failure to heed the warning ay result in
serious bodily injury and even death.
Caution!
Safety note to indicate the presence of a potential hazard. Failure to heed the safety notice
ay result in inor bodily injury or da age to the equip ent.
Infor ation!
This sy bol identifies i portant infor ation or a useful tip concerning the application of the
equip ent.
Listing
This sy bol identifies an enu eration or listing.
Graphical
ENGLISH
Sy bols

6
454107.66.01-02_GB
01.07.2015
Translation of the Original
1.3 Safety Notices
For the installation, operation and aintenance of the process cooler, the following regulations
and safety notices have to be observed:
Any work on the process cooler ay only be perfor ed by qualified personnel.
All relevant accident prevention regulations have to be observed.
Do not allow anybody to stand or pass underneath the forks when lifting and setting
down the process cooler; stay clear of the danger area.
The process cooler ust be properly secured in order to prevent it fro tipping over.
The safety devices ust not be deactivated.
The electrotechnical connections of the process cooler ust be perfor ed according
to and confor ing with all relevant VDE, EN and IEC standards. Beyond that, the
technical connection require ents of the local electrical utility co pany have to be
observed.
Do not atte pt to perfor any work unless the power supply to the process cooler has
been disconnected.
Specific regional or national provisions applicable in the country where the unit will
be installed ust be adhered to.
The closed refrigeration circuit contains refrigerants and refrigeration oil. These ust
be properly disposed of when perfor ing service work or placing the unit out of
service (environ ent).
Anyone working on the refrigeration circuit ust wear personal protective equip ent.
The process cooler is to be used exclusively for the cooling of air in accordance with
predefined specifications.
1. For Your Safety
ENGLISH

7
454107.66.01-02_GB
01.07.2015
Translation of the Original
1.4 Handling of Refrigerant
When handling refrigerants, all legal provisions and guidelines ust be co plied
with. Only qualified personnel ay perfor these activities.
The operator of the process cooler is responsible for the proper disposal of used refrigerants
and syste parts.
1.5 Safety Require ents
Safety require ents concerning the operation of refrigeration syste s within the
European Union.
The following infor ation applies to refrigeration syste s with closed refrigeration cycles that
are used within the European Union. In so e e ber states additional require ents ay
apply, e.g. due to environ ental considerations.
In these refrigeration units working pressures occur that are subject to the regulations laid
down in the Pressure Vessel Directive 97/23/EC and European standard EN 378 (Parts 1 – 4,
version Septe ber 2000).
Apart fro the require ents relating to the design, equip ent and testing of the refrigeration
syste s prior to delivery to the custo er, also the operator of such syste s has to co ply
with require ents in accordance with European standard EN 378 and/or additional national
regulations. These concern the installation, the operation and regular testing of
refrigeration syste s.
1.5.1 Installation
If the process cooler is installed below ground level or on upper floors of a building, without any
adequate nu ber of e ergency exits, installation site require ents relating to the protection of
people in accordance with EN 378 have to be co plied with.
With respect to the actual refrigerant charge of the process cooler, a ini u roo volu e
ust be aintained and not be fallen short of.
Process Cooler Refrigerant ³
Cooling syste 12 kW 134a 12
Cooling syste 17 kW 134a 12
Mini u roo sizes in [ ³] are required for the installation of refrigeration units, depending on
the refrigerant being used.
It can thus be ensured that in the case of refrigerant leaks caused by da age to the equip ent
- and thus the displace ent of oxygen - will not have any detri ental effect on the health of
people.
1. For Your Safety
ENGLISH

8
454107.66.01-02_GB
01.07.2015
Translation of the Original
1.5.2 Operation
The owner and/or the operator of the process cooler is obligated to establish
e ergency practices (in the case of accidents and alfunctions). A short version of the
operating instructions ust be drawn up by the operator – based on this present Operating
Manual – and ade known to the e ployees.
The quick reference guide ust be clearly legible and affixed in the i ediate
vicinity of the process cooler.
See Sa ple Quick Reference Guide.
The owner and/or operator of the syste is obligated to keep a logbook for the
process cooler.
The syste logbook ust either be available on site near the process cooler, or in the event
that the data are stored in a co puter of the owner or operator, a printout of the log ust be
kept in the vicinity of the process cooler. It ust be ensured that these data are accessible to
qualified persons for the perfor ance of repairs and regular inspections/tests.
See Sa ple Syste Log
1.5.3 Regular Inspections and Tests
To ensure co pliance with ini u safety and health require ents as set forth in standard
EN 378, regular testing (routine inspections) of the process coolers ust be carried out by
co petent personnel.
The operator is responsible for the perfor ance of these periodic tests.
(See Chapter Regular Inspections and Tests).
1.6 Purpose of the Process Cooler
The process cooler described in this anual is designed exclusively for the cooling of Sie ens
Co puter To oghraphs (CT scanners) within the specified operating te perature li its.
1. For Your Safety
ENGLISH

9
454107.66.01-02_GB
01.07.2015
Translation of the Original
2. DESCRIPTION OF THE PROCESS COOLER
The 12 kW water-/air split cooling syste and the 17 kW water/air split cooling syste , are
water-cooled chillers, ready for plug-in, in split-design incorporating a refrigeration circuit and
cooling water circuits including all fittings and regulating/control devices required for auto atic
operation. The process cooler consists of an indoor unit with an active refrigeration circuit. The
waste heat of the refrigeration circuit and/or the CT scanner is dissipated to the at osphere
through an air-cooled outdoor unit.
2.1 Refrigeration Circuit
The refrigeration circuit is a closed-loop syste in which the refrigerant circulates as the
working ediu .
The water heated by the equip ent to be cooled is recooled in the evaporator. In so doing, the
liquid refrigerant flows in a counter-flow direction with respect to the water. The refrigerant
evaporates as it absorbs heat fro the cooling water heated by the equip ent being cooled.
The refrigerant is now in a gaseous state and is drawn in and co pressed by the co pressor
(rise in pressure and te perature). The refrigerant also absorbs the heat of the co pressor
otor; this heat is given off as waste heat to the cooling water circuit by the condensing unit.
The refrigerant is liquefied in the process and is passed to the inlet of the expansion valve via
the liquid receiver, the shut-off valve and the filter drier. The expansion valve per its liquid
refrigerant to enter the evaporator as a function of te perature.
The cycle is now co plete.
2.2 Cooling Water Circuit
Pri ary Circuit
The heat produced upon cooling the water and to be given off in the evaporator, as well as the
heat of the co pressor otor are absorbed by the refrigerant and given off, in the condenser, to
the cooling water circuit. The condensing pressure in the refrigeration circuit is kept constant
by eans of the pressure-controlled water regulation valve in the cooling water circuit.
Secondary Circuit
The heat of the equip ent to be cooled (CT scanner) is dissipated via the secondary circuit
and given off to the refrigeration circuit. The cold water te perature is kept constant at a
defined flow te perature.
2.3 Electrical / Control Equip ent
The E-box is located behind the front door on the operating side.
For the electrical connection, an all-pole disconnecting device with a contact gap width of at
least 3 (e.g. power contactor, ains switch, or residual current circuit-breaker, if required)
needs to be provided on-site. The technical require ents laid down by the relevant power
supply co pany ust be adhered to.
The power ratings of the syste parts are shown on the rating plates of the individual syste
co ponents. Earthing, co unication and power supply cables are to be installed separately.
The wires enter the E-box fro below.
2. Description of the Process Cooler
ENGLISH

10
454107.66.01-02_GB
01.07.2015
Translation of the Original
3. TECHNICAL DATA
3. Technical Data
ENGLISH
Type Cooling syste 12 kW Cooling Syste 17 kW
GDD part nu ber 2NK6 746W 2NK6 745-1W
Sie ens part nu ber 10589726 10430821
Net cooling capacity 12 kW 17 kW
Voltage
Max. current consu ption 19A 23A
Max. electr. power input (50Hz) 10kW 12 kW
Max. electr. power input (60Hz) 13 kW 15 kW
Weight 410 Kg 413 Kg
Rated flow rate, pri ary circuit
Rated flow rate, secondary circuit
Rated te perature, secondary circuit
Outside te peratures
Outside te peratures with flow heater
Installation area volu e, indoor Unit
Maxi u installation height:
Maxi u operating pressure against closed slide valve
(pri ary and secondary circuits)
3x 400V/50Hz / 3x 460-480V/60Hz
2.7 ³/h
2.5 ³/h
3.8 – 4.0 bar
(Pressure can be read off the pressure gauge on the unit)
in. 12 ³
2000
(3000 at ax. a bient te perature of 40°C)
14 °C +1K / -2K
-30°C to +50°C
-40°C to +50°C

11
454107.66.01-02_GB
01.07.2015
Translation of the Original
4. TRANSPORT AND STORAGE
The safety notices contained in Chapter 1 ust be co plied with !
The in-house transport is carried out by a forklift, lift truck or crane.
The process cooler ust be placed on a level surface in order to prevent any distortion of the
base fra e.
4.1 Transport Specifications
- Weight see Technical Data
- Main di ensions see Appendix
- A bient te peratures -25 °C to + 50 °C
- Relative hu idity 10% to 90% rel. hu idity
- Air pressure 70 -106 kPa
4.2 Indoor Units 2NK6 746W (10589726) and 2NK6 745-1W (10430821)
The indoor unit of the split cooling syste is designed exclusively for installation in enclosed
and sheltered areas. The unit ust not be installed outdoors as it cannot be guaranteed that
the unit will function properly there (te perature effect, tightness of the housing).
The surface ust be even, level and horizontal. For the installation of the „Seis ic-Kit“ an
additional hole needs to be dsrilled into the ground.
(see Installation Instructions, GDD nu ber 454107.66.02).
To guarantee proper accessibility for the perfor ance of aintenance and service work, the
following ini u clearances need to be aintained:
4. Transport and Storage
ENGLISH

12
454107.66.01-02_GB
01.07.2015
Translation of the Original
4. Transport and Storage
ENGLISH
4.3 Outdoor Unit 2NK6 745-1A (10743384)
The cooling unit is to be installed outdoors and there ay be a height difference of ± 20
between the outdoor and the indoor units. The surface ust be even, level and horizontal. The
direction of the air flow is fro the botto to the top.
Make sure that the air inlet and air outlet are not obstructed as otherwise it cannot be
guaranteed that the entire cooling syste will function correctly.
The operating side ust be kept clear to ensure proper access for connecting, operating and
any possible servicing activities.
4.4 Installation
Extensible caster wheels are provided for transporting the unit inside the building to the
installation site. The casters can be retracted and extended by eans of hexagon screws.
The caster wheels are not suited for general transport of the unit on very uneven or
rough surfaces as this ay result in da age to the wheels!
During transport, the unit ay be tilted ax. 45°. There is a hazard of the unit tipping
over and being da aged!
Caster wheels adjust ent
Indoor Unit

Translation of the Original
4. Transport and Storage
ENGLISH
13
454107.66.01-02_GB
01.07.2015
Outdoor Unit
Wear protective gloves!
How to open the wooden box:
Re ove the screws fro the top by eans of a cordless screwdriver first. Pull side panels apart.
Use a crow bar if necessary.
Re ove all ounting brackets:
(taken fro original anual KCE1502A04P_M by Luvata)
Erecting and transport via crane:

Translation of the Original
4. Transport and Storage
ENGLISH
14
454107.66.01-02_GB
01.07.2015
Erecting and transport without crane:
1
Re ove both wooden blocks without re oving/da aging the felt cover.
2
Move unit for attaching the support legs.
Mounting support legs:

Translation of the Original
4. Transport and Storage
ENGLISH
15
454107.66.01-02_GB
01.07.2015
Tilt unit on the support legs. Fasten support legs at final position.

16
454107.66.01-02_GB
01.07.2015
Translation of the Original
5. ASSEMBLY
The safety notices contained in Chapter 1 ust be co plied with !
5.1 Electrical Connection
The following electrical connections need to be ade:
1) Connect power supply cable W820 to outdoor unit
2) Connect co unication cable W821 to gantry
3) Check connection of control-power transfor er
4) Connect process cooler to on-site power supply
5. Asse bly
ENGLISH
Connecting the cables of the indoor unit / E-Box
Anschlüsse der Inneneinheit an der E-Box
1) Connect power supply cable to outdoor unit W820 to 1X1
(wire/clamp: 1/1, 2/2, 3/3, 4/4, / , GNYE/PE)
Protective earth connection to X2 – earth bolt
2) Connect communication cable to gantry W821 to X3
3) Check connection transformer T1
(black wire between 1-3 at 0Hz; 1-4 at 60Hz)
4) Connect on-site power supply
(wire/clamp: L1/T1, L2/T2, L3/T3, GNYE/PE)
1) Anschluss des Anschlusskabels Ausseneinheit W820 an 1X1
(Ader/Klemme: 1/1, 2/2, 3/3, 4/4, / , GNYE/PE)
Schutzleiterverbindung am Erdungsbolzen X2
2) Anschluss der Kommuniktionsleitung zur Gantry W821 an X3
3) Prüfen des Anschlusses des Steuertransformators T1
(Anschluss 1-3 bei 0Hz; 1-4 bei 60Hz)
4) Anschluss der bauseitigen Spannungsversorgung
(Ader/Klemme: L1/T1, L2/T2, L3/T3, GNYE/PE)
X3 / W821
Communication cable
to gantry
Kommunikationsleitung
zur Gantry
1X1 / W820
Power supply
Outdoor Unit
Anschlusskabel
Ausseneinheit
1) 2) 3) 4)
X2 X3
On-site
Power supply
Bauseitige
Spannungsver-
sorgung
T1

17
454107.66.01-02_GB
01.07.2015
Translation of the Original
5.Asse bly
ENGLISH
5.2 Hydraulic Connection
The connections for the pri ary and secondary circuits are located in the lower section of the
indoor unit. When aking the hydraulic connections, the hoses supplied with the unit ust be
used.
The ounting instructions supplied with the hoses and hose cla ps ust be
observed.
Cutouts in the base plate are provided through which the two hose pairs are passed.
The connections are accessible fro the operating side (front side) of the indoor unit.
The connections on the right-hand side (indoor unit <=> outdoor unit) are intended for the
pri ary circuit and those on the left-hand side for the secondary circuit
(indoor unit <=> gantry).
After connecting the hose sets fill the syste according to 5.3.1.
The safety valve opens when the safety valve threshold pressure is exceeded (if the
threshold pressure is fallen short of, the safety valve closes auto atically) and the
ediu is able to escape.
Use only the delivered water/glycol ixture as provided to fill the pri ary circuit. The
secondary circuit can be filled with tabbed water in co pliance with the responsible Sie ens
project anager.
Pri ary circuitSecondary circuit

18
454107.66.01-02_GB
01.07.2015
Translation of the Original
5. Asse bly
ENGLISH
5.3 Co issioning
Pri ary circuitSecondary circuit
Air separator
4
3
2
1
2
1
3
4
7 6
5
5

19
454107.66.01-02_GB
01.07.2015
Translation of the Original
5.3.1 Filling Both Cooling Circuits
Do not start filling the cooling circuits until the individual co ponents have been
incorporated as specified. Only genuine hoses are to be used in accordance with
specifications.
We reco end the use of GDD fill pu p sets (order nu ber 4518109031)
5. Asse bly
ENGLISH
Step Pri ary Circuit Secondary Circuit
1Connect the pressure hose of the fill pu p to
the fill and drain valve (1) of the cooling circuit
pu p.
Connect the drinking water pressure hose to the
fill and drain valve (1) of the cooling circuit
pu p.
(Specifications per the Sie ens Planning
Guide to be used / any national laws concerning
the Drinking Water Ordinance ust be
co plied with)
2Sub erge the suction hose of the fill pu p in
the canister containing the water/glycol solution
(the supplied water/glycol solution ust be
used).
dispensed with
3
4Connect a flushing hose (use a transparent
hose, if possible) to the fill and drain valve (4)
and also place this hose either into an e pty
canister or into the canister containing the
water/glycol solution. Open the fill and drain
valve (4).
Caution:
Do not allow the water/glycol solution to get into
the sewer syste !
Connect a flushing hose (use a transparent
hose, if possible) to the fill and drain valve (4)
and place this hose into an e pty vessel.
Open the fill and drain valve (4).
5Turn on the fill pu p and slowly open the fill and
drain valve (1) to prevent pressure shocks
(water ha er) fro occurring.
Open on-site drinking water supply line and then
slowly open the fill and drain valve (1) to prevent
pressure shocks (water ha er) fro
occurring.
6To change the canister, slowly close the fill and
drain valve (1) and i ediately turn off the fill
pu p. The circuit is co pletely filled once filling
ediu flows back through the flushing hose.
Note:
In case ediu e erges directly fro the
flushing port (4), check the 3-way valve (P&I flow
diagra , part 22) at the outlet – anual
switchover fro bypass to two-way (see Fig. on
page 17)
Caution:
The circuit ust now be properly flushed (3-
10 in). The a ount of ti e required for this
procedure ay vary depending on the hose
length and the installation height difference.
The ore thoroughly the circuit is flushed, the
earlier will the syste be free of air and ready
for operation.
The circuit is co pletely filled once the filling
ediu flows back through the flushing hose.
Caution:
The circuit ust now be properly flushed (3-
10 in). The a ount of ti e required for this
procedure ay vary depending on the hose
length and the installation height difference.
The ore thoroughly the circuit is flushed, the
earlier will the syste be free of air and ready
for operation.
Close ball valve (3) and open ball valve (2).

20
454107.66.01-02_GB
01.07.2015
Translation of the Original
5. Asse bly
Direction of rotation of actuator handwheel
ENGLISH
Step Pri ary Circuit Secondary Circuit
7
8
9A filling pressure of 3 bar. The fill pu p ay
have to be turned on again and the fill and drain
valve (1) opened until this pressure is reached,
or else, the pressure needs to be relieved via
the fill and drain valve (4).
Turn off the fill pu p and/or close the fill and
drain valve(s) (1) & (4).
A filling pressure of 2 bar. To reach this
pressure it ay be necessary to continue filling
the circuit via the fill and drain valve (1), or else
to relieve the pressure via the fill and drain valve
(4).
Close fill and drain valves (1) & (4).
10
11 Now disconnect the fill pu p fro the cooling
syste and screw the protective caps back on
the fill and drain valves (1) & (4).
Screw the protective caps back on the fill and
drain valves (1) & (4).
12
Once the ediu flows out of the flushing hose with al ost no air bubbles, close the fill and drain
valve (4) as well as the flushing hose outlet and open valve (3).
Any re aining air will be re oved fro the syste via the air separator.
The cooling syste is now ready for operation.
Activate the power supply.
- Activate all otor protecting switches [Q1-Q6] and circuit-breaker F1
- Turn on ain switch
Q1: Outdoor Unit
Q2: Co pressor 1
Q3: Co pressor 2
Q4: Secondary pu p
Q5: Pri ary pu p
Q6: Control-power transfor er
F1: Control circuit
After an initialisation period of approx. 2 inutes, the cooling water pu ps will start operating.
Any air that ay still be trapped in the circuit will be re oved by the air separator. Should this
cause the operating pressure to fall below the reco ended pressure of 2bar or 3bar ±0.2bar,
step 9 has to be repeated.