nvent Schroff RackChiller InRow Series Product manual

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RackChiller InRow
Chilled water cooled units
Issue 1.0.0
October 2018

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This document
• Distributed copies will not be updated.
• It has been designed for viewing as a PDF le and double sided printing
(subject to copyright – see below) for a hard copy.
• Copies of this document can be obtained from nVent Schroff GmbH.
Copyright notice
The condential information contained in this document is provided solely for use by nVent employees and
system owners and is not to be released to, or produced for, anyone else.
Neither is it to be used for reproduction of this unit or any of its components.
All specications are nominal and subject to change without prior notice as design improvements occur.
Disclaimer
Schroff shall not be held liable for any errors that may be included in this documentation.
Liability for direct and indirect damage that occurs in connection with the supply or use of
this documentation is excluded to the extent permitted by law.
Schroff reserves the right to change this document, including the disclaimer of liability, at
any time and Schroff shall not be liable for the potential consequences of these changes.
Produced by
nVent
Schroff GmbH
Langenalber Str. 96 - 100
75334 Straubenhardt, Germany
The details in this manual have been carefully compiled and checked – supported by certied Quality
Management System to EN ISO 9001/2000.
The company cannot accept any liability for errors or misprints.
The company reserves the right to amendments of technical specications due to further development and
improvement of products.
Copyright © 2018 nVent.
All rights and technical modications reserved

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Contents
Product information 6
RackChiller Models 6
Electrical ratings 6
Important safety information 7
Safety symbols 7
Safety instructions 8
Other important information 9
Rating label 9
Warranty 10
Installation 10
Pre-installation checks 10
In Row cooler installation 10
Installation guidelines 10
Options 11
Stages 11
Required parts 11
Required tools 11
Fitting an In Row cooler into a cabinet row 12
In Row cooler removal 12
Disconnecting hoses, removing and draining the coil 12
In Row maintenance 13
Fan replacement 13
Electrical installation 14
Fuse replacement 14
Central Management System (CMS) 15
Input side 15
Power side 15
Inside the CMS - circuit boards and jumper settings 15
CMS - power side basic wiring 16
CMS input side – basic wiring for water version 16
CMS picture front panel, wiring example – water version standard wiring 17
CMS picture front panel connections – Belimo EPIV valve 18
Emeter 3 wiring for single phase monitoring (CMS power side) 19
Central Management System (CMS) 21
CPCO commander21
Communication 22
BMS port 22
CMS controller – connection and power-up 23
Connection 23

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CMS controller – power-up, warning notice and alarm guide 24
Power up – Master Display 24
Warning notice 25
Alarm guide 25
CMS controller – Master display and software version 26
Master display 26
Software version 26
CMS controller buttons 27
CMS controller – navigating menus 28
Master display 28
Navigating the menus 28
CMS controller software overview 29
CMS controller – user access and password information 30
Access information 31
On/off screen 32
CMS controller – view status 33
Status/fans 33
Digital inputs 34
Digital outputs 35
Valve control status 35
Status IO screen 36
Status serial probes screen 36
Emeter 37
CMS set-up of water versions 38
Set-up/general 38
Overview of the different water models. 39
Fan control 1Z 39
Fan control 2Z 39
Fan control 3Z 39
System control 39
AV control 39
Set-up probes 40
Serial probes set-up 41
Set-up Belimo EPIV valve42
Set-up of temperature control compensation 43
Set-up of probe alarm 43
Fan set-up 44
Set fan type and zones 45
Set digital outputs 45

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Digital input set-up 46
Custom alarm set-up 47
Cold Aisle set-up 48
Leak alarm 48
Set-up of the valve feedback alarm 48
Air-on alarm49
Set-up contact details 49
Probe calibration 49
Erase alarm log 50
Units of measurement 50
Fan delay 50
Energy meter 51
Thermistor functions 52
Fan control 53
Regulation/zone 1 53
Zone 2 control 54
Chiller regulation for zone 1, zone 2 and zone 3 control 56
Regulation/chiller, zone 1/2/3 mode 56
Chiller regulation for AV and system control 57
Control of fan alarm 58
Fan cut-off control59
High low control temperature 60
Data logger 62
Preventative maintenance warnings 63
Text warnings/advisories 63
PM warnings – clean coil 63
Other PM warnings than can be set in a similar way are: 64
System checks 64
Alarm checks 65
Central Management System (CMS) 66
CMS controller – CMS display pairing66
CMS circuit diagram 68
RackChiller Water software – CPCO mini inputs and outputs table 69

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Product information
The RackChiller range of products provide cooling to rack mounted IT equipment in data centers.
They have been designed with energy efciency and high equipment density in mind.
They can replace the traditional approach to data center cooling or work alongside existing data center
designs as it is modular and scalable.
Designed to be connected to existing or new external cooling plant, RackChiller units are made up of a heat
exchanger, fans for airflow and a Centralised Management System (CMS) which oversees the control and
interfaces with BMS or other management systems.
The CMS lies at the heart of the RackChiller In Row solutions, keeping the room ambient temperature
controlled locally and at cabinet level. It automatically adjusts the fan speed, flow rate and, if necessary,
the output temperature resulting in a consistent delivery of cooled air into the data center with no operator
intervention. The whole process can also be overseen and controlled at individual cabinet level, room level
and remotely via any of the industry standard communication protocols. Water cooled variants of the In
Row system keep water above dew point which keeps the system free of condensation.
RackChiller Models
The following variants of the cooling modules are available:
- 60714-079 RackChiller In Row 2000mm height, 300mm width with 2x 230V Power Input
- 60714-080 RackChiller In Row 2000mm height, 600mm width with 2x 230V Power Input
- 60714-081 RackChiller In Row 2000mm height, 300mm width with 2x 208V Power Input
- 60714-082 RackChiller In Row 2000mm height, 600mm width with 2x 208V Power Input
Electrical ratings
NOTE: The CMS System is provided with a dual back-up supply facility in the event of a main supply failure.
Power will automatically change over to the alternative power input.

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Other ratings
Fan Output (Output A) 200-240V, 50/60Hz, 10A Max
Auxiliary Output (Output B) 200-240V, 50/60Hz, 315mA
Water Cooled models
(coil dependant, nominal
values)
MWP 6 bar, 20 to 83 l/m, 15 to 25 °C
Weights Some models weigh in excess of 145kg (319.67 lbs)
Sound levels
Nominally less than 74 dB.
NOTE: Unit may run at 100% under fault condition which
will encroach on 85 dBa
Operating temperature 15 to 40°C
This product is to be connected to an appropriately rated branch circuit protected supply.
THIS PRODUCT MUST BE GROUNDED/EARTHED.
Supplied with 2 x SJT cables with C19 connectors, 3 x 16 AWG, 300V, 70°C, VW-1.
The units are provided with dual inputs. Ensure that both inputs have been isolated before
servicing.
This product must be installed in accordance with local electrical codes.
Important safety information
Safety symbols
Symbol Denition
Dangerous Voltage To indicate hazards arising from dangerous
voltages.
Warning / Caution An appropriate safety instruction should be
followed or caution to a potential hazard exists.
Protective Earth
(Ground)
To identify any terminal which is intended
for connection to an external conductor for
protection against electric shock in case of
a fault, or the terminal of a protective earth
(ground) electrode.
Heavy
This product is heavy and reference should be
made to the safety instructions for provisions
of lifting and moving.

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Important safety information
Safety instructions
• The RackChiller Systems contains no user serviceable parts inside.
• The RackChiller system requires an external means of isolation for both the incoming power and
cooling supplies.
• Protect the power cord from being walked on or pinched, particularly at the hinge, plugs and outlets.
Should a power cord become damaged, isolate the system and remove from service until an
appropriate replacement can be sourced and tted.
• Do not block any ventilation openings.
• Refer all servicing to qualied personnel experienced with these types of installations.
• Should a fault occur with the product, immediately isolate and disconnect the incoming power.
• This unit has a dual supply – isolate both supplies before carrying out any work. Pull out both
cables to shut off. The end user is to be guided on other methods of isolation.
• Always ensure the machine is level when in use.
The units must be installed vertically on a level, dry floor.
• The machine should be used as provided and should not be tampered with or altered as the
machine contains inbuilt safety systems which could be compromised by any interference.
• This equipment is designed to be installed in an ofce or data center environment and is for indoor use only.
• The installation and operation should be conducted in accordance with local regulations and
accepted codes of good practice.
• Adequate ttings to be used – they must not be to the detriment of any UL or local standard.
• The appropriate Personal Protection Equipment (PPE) should be worn at all times.
Fuses
Fuse ratings table
CMS model F1 F2 F3 F4 F5 F6 F7 F8 F9 Power
board
Taco
board
60714-079 and
60714-080
(230V)
F0.5AH250V
T12.5AH250V
-
T12.5AH250V
-
T0.315A250V
-
T10AH250V
-
T0.315AH250V
T2AH250V
60714-081 and
60714-082
(208V)
F0.5AH250V
T12.5AH250V T12.5AH250V T12.5AH250V T12.5AH250V
T0.315A250V T0.315A250V
T10AH250V T10AH250V
T0.315AH250V
T2AH250V
For systems that are powered phase to phase (208V), always replace both supply fuses when one has failed.

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Other important information
Some parts are sensitive to electrostatic discharge.
Observe all ESD precautions.
Failure to do so can result in damage to the equipment.
Rating label
Each unit has a rating label afxed to the top of the RackChiller management system unit containing the
following information:
Warranty
Failure to comply with the manufacturer’s installation instructions could affect the reliability and
performance of the unit and invalidate the warranty.
Warranty is also subject to the implementation of a planned service / maintenance agreement as stipulated
in the warranty booklet supplied with the unit and/or the sales contract.
Please read the user’s guide
The In Row units are carefully engineered to provide energy efcient cooling direct at rack level, ensuring
control of room ambient temperature.
This guide helps the set-up, operation, monitoring and maintenance of the RackChiller system via the
Central Management System (CMS) unit and its controller.

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Installation
Pre-installation checks
• The water version of the In Row cooler is supplied with the appropriate hoses from the factory.
• Make local arrangements for isolation of the power supply.
• Ensure that the water supply pressure doesn’t exceed the unit rating.
• The unit is supplied with 2 x SJT cables with C19 connectors, 3 x 16 AWG, 300V, 70°C, VW-1.
• Ensure that the unit is not connected to any electrical supply.
• Check for transport damage and report any to your supplier.
• Remove any packaging material.
• Ensure that the floor is able to take the weight of the unit.
In Row cooler installation
It is important to prepare the area before installing the In Row cooler and follow all safety guidelines.
Installation guidelines
• Please read all safety instructions before continuing.
• Please read through this document before commencing installation.
• Do not obstruct air paths to the inlet or outlet of the In Row cooler.
• Water supply, rated 3 bar (45 psi).
• Adequate ttings should be used – they must not be to the detriment of any UL or local standard.

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In Row cooler installation
Options
1. The In Row cooler is available as a 300mm wide or 600mm wide cabinet.
2. It is designed to be installed within a row of cabinets, either as an open row
or as part of a contained hot or cold aisle.
Stages
1. Preparing the working area.
2. Connecting hoses to the cooler
3. Installing the cabinet.
4. Filling the cooling system.
5. Setting up and operating the CMS controller.
Required parts
1. This documentation.
2. In Row cooler.
3. Cabinets, end of aisle doors, roof (Options).
4. RackChiller attachment hoses.
5. RackChiller commissioning valves and flow control valves.
6. CMS connector kit.
Required tools
1. Pozidrive screwdrivers #2 and #3.
2. Flat blade screwdriver.
3. Electrician’s screwdriver.
4. Retractable blade.
5. 10mm AF spanner.
6. 8” wide jaw adjustable spanner.

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In Row cooler installation
Fitting an In Row cooler into a cabinet row
1. Move the In Row cooler into approximately the correct position against the adjoining cabinet.
2. Remove any protective packaging.
3. Remove the transit castors.
NOTE: Refer to the important safety information on pages 6-9 of this document.
4. Move the In Row cooler into its nal position against the cabinet.
5. Position next to the cabinet and bay to the In Row cooler.To bay the cooler next to a nVent cabinet use
20714-001 for Varistar and 20714-002 for a Proline cabinet. Follow the instructions provided with the
baying kit.
7. Pass the hoses through the bottom or top of the In Row cooler, as required and connect to pipework.
8. Feed the power leads into the In Row cooler from above or below, as required and connect.
9. Power up the In Row cooler and check operation.
In Row cooler removal
Disconnecting hoses, removing and draining the coil
Both the coil header (circuit injections) and hose connections are at the top of the coil.
A drain point at the lowest point of the coil would not drain the coolant.
The recommended method for safe, dry removal of the In Row cooler within a working Data Center is as
follows:
1. Shut off the coolant supply pipe wait 10 seconds then shut off the supply pipe.
2. Place a suitable container below the hose to be removed.
3. Put the spanners onto the hose and cover with a piece of rag to avoid any spray.
4. Loosen the hose and allow any pressure to dissipate.
5. Slowly unscrew the hose catching the coolant in the container. Expect 2.5 - 3l of coolant to be discharged.
6. Loosen the second hose. Additional coolant will siphon through the rst hose. Disconnect the second hose.
7. Cap both hoses, feed back into the In Row cooler and cable tie to the frame as high up as possible.
8. Disconnect the cabling connections.
9. Remove the baying bolts from the adjoining cabinets.
10. Remove any xings attaching the aisle roof to the In Row cooler.
11. Move the In Row cooler out of the aisle and t transit castors (optional).
12. Take the In Row cooler out of the Data Center.
13. Once in a suitable location (outside) the side panel can be removed and the coil removed from the In Row cooler.
14. Lay the coil down and remove the hose caps. The remaining coolant can be allowed to drain.
The coil may need to be turned upside down to effect full draining of the coil loops.
15. If the coolant contains any additive(s) dispose of the coolant in accordance
with the relevant Safety Data Sheet(s) & local waste disposal codes.

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In Row maintenance
Fan replacement
1. Identify the failed fan from the alarm log.
2. Isolate the Electrical supply(s).
3. Remove the black powdered column, see g. 12 for 600mm wide device.
4. Disconnect the two connectors on the faulty fan.
NOTE: The connectors have retention clips.
5. Once rotation has stopped, unscrew the three screws holding the fan panel to the perforated shelf.
6. Remove the four retaining screws in the corners of the fan panel.
7. Withdraw the fan panel and slide the cable loom from the panel.
8. Replace it with the new fan assembly panel and bolt it back in place.
9. Spin the new fan to ensure correct alignment with inlet ring and, if necessary, adjust the panel.
10. Reconnect the two molex connectors.
11. Reinstate the electrical power supply(s) to the CMS.
NOTE: The fan will immediately ramp up to the current fan speed.
12.After a short while, the fans will resume cooling at the rate determined by the temperature sensor.
13. Ret the steel column.
14. Reset the alarm.
Remove 4 x retaining screw
– keep them safe.
Fit grommet, which is captive on the
door loom to fan panel, on either left or
right hand side of the panel

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Electrical installation
The unit will be with a pair of C19 to C20 cable (dual supply systems).
Plug the C19 cordset provided into the A-Supply socket of the CMS.
Additionally, plug a further C19 cordset into the B-Supply socket for the dual supply back-up option.
Provisions must be made to isolate both supplies for maintenance or in the event of a hazard.
Fuse replacement
Refer to the important safety information on pages 6-9.
In the unlikely event that a fuse requires to be replaced the following instructions should be adhered to.
1. Isolate electrical power.
NOTE: Both supplies must be disconnected where a dual supply is provided.
2. Identify, remove and discard the offending fuse.
3. Replace the offending (5x20mm) fuse with an approved rated fuse as detailed in the table on page 7.
4. Reinstate the incoming power supply(s).

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Central Management System (CMS)
Input side
Power side
Inside the CMS - circuit boards and jumper settings
When a 6 fan
system is used
set this jumper to
FAN6, otherwise
set to NTC0
MS – Enables or disables
the backup circuit. This
forces the fans (Y1) to run
at full speed. The valve
(Y2) will remain at its last
position if there is a failure
in the control system
(CPCO mini).
DL – Delays the backup
circuit for Y1 & Y2 for 30
seconds whilst the control
system boots up. It should
be used when the software
delay for fan startup has
been set (see fan delay in
set-up section).
Y3 – Has the same
function as DL but works
for control output Y3 and
should be set to ON when
3 zone fan control and
software delay for fan
startup are both enabled.
For use with valve
feedback set to off.
Power board (230V version shown)
CPCO mini
Transformer
Taco board

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CMS - power side basic wiring
CMS input side – basic wiring for water version
Front LED
indicator
connection
Power input A
E-meter sensing
loop
Fan power
output
E-meter power
output
Power input B
Earthing point
Refer to fuse
table for fuse
information.
Digital input 2
connection:
Custom alarm/cold
aisle/Leak alarm
output
Custom alarm/cold
aisle/Leak alarm output
Fan signal output, valve
signal output and valve
feedback
Dead unit/
power failure
(NO3)
Valve control fuse,
24V AC
Valve power
connection, 24V AC G
= +ve pin
Door loom
connection
Temperature sensor
connections
TCP/IP connection (high
end versions CPCO only)
Global alarm
output (NO2)
Field bus
connection

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CMS picture front panel, wiring example - water version standard wiring
CMS picture front panel, wiring example– Belimo valve for water version
NTC3, Temp zone 3/Spare
**Optional thermistor, not used where 6 fans are present.
The following features will require a serial probe to be
set-up as cabinet front/room temperature:
Temperature control comp. (See serial probe set-up
section)
Probe alarm (See serial probe set-up section)
Fan cut-off (see control section)
***AV control, In system control NTC2 measures return
water temperature
NTC1, Air off coil
NTC2, Air-on coil***
*Orange wire is only required when
valve feedback has been enabled.
White (3)
Black (2)
Red (1)
Orange (5)*
Belimo actuator
with water valve
Fan loom
NTC0, Cabinet front/Room**
wire these thermistors to NTC GND using the white wire

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CMS picture front panel connections – Belimo EPIV valve
CMS picture front panel connections – leak detection option
Multiple thermistor wiring
In some cases it may be desirable to wire multiple thermistors into a single NTC. For example, you may
wish to see the average temperature on the inside of a rack, rather than use a single thermistor to measure a single point.
In this case, four thermistors wired in series-parallel must be used.
Shielding
Red (1)
Optional VFC contact output to BMS.
Closed when leak has been detected.
Connect leak tape phoenix
connector to here
Belimo EPIV
actuator and valve
Black (2)
Grey (7)
Pink (6)
shielding
NTC1, Air-off coil
NTC1, Air-off coil
NTC1, Air-off coil
NTC1, Air-off coil

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Emeter 3 wiring for single phase monitoring (CMS power side)
Power wiring to Emeter 3, CMS-0006-XX
Emeter 3 wiring for single phase monitoring (input side)
Current sensing loop
CMS-0007-XX
Current transformer (CT)
Connect S1 on CT to ‘1’on the emeter, and S2 to ‘2.’
Wire the emeter into the eld bus.
Wires must be shielded.
Use a Belden 9841 cable.

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LED Indicator
The LED indicator is red when the unit
is in alarm, and show is green when
the system is running normally. It
plugs into the ALARM INDICATOR on
the CMS box.