Searle Air Coolers
INSTALLATION AND
MAINTENANCE
INSTRUCTIONS
Searle Air Cooler
Searle Air coolers
INSTALLATION &
MAINTENANCE
INSTRUCTIONS
Content : Important Information
1. Health and Safety
2. Warranty Procedure
3. Labelling on Coolers
4. Packaging
5. Loading and Handling
6. Location guidance and Installation
7. Pipework
8. Condensate Drainage & Condensate pump kit options
9. Storage
10. TEV Selection
11. Dual Orifice instruction
12. Evacuation
13. Electrical
14. Wiring diagrams
15. Defrost
16. Coil heaters
17. Initial Starting
18. Maintenance
19. Coil Cleaning
20. Standards
21. Invalidation of Guarantee
22. Dimension drawings and tables
INTRODUCTION
This installation and maintenance is intended to accompany Searle manufactured Air Coolers. The coolers
are made up of heat exchanger; commonly incorporating aluminium fin material and copper tube, galvanised steel casework and axial fansets. These components will vary with application, but the product
function will remain common; to remove energy from a working fluid, generally as part of a refrigeration
system. This document is not a replacement for formal training and should only be referenced by qualified
personnel (meeting relevant regional standards). Any installation or maintenance work carried out in relation to the supplied air cooler should be in accordance to regional / national law and legislation . Additional
information and assistance can be provided by the equipment supplier or from the many Searle regional
offices located worldwide.
3
1. HEALTH AND SAFETY INSTRUCTION
AND SIGNS
This concerns the following hazards, which may be encountered when installing and maintaining this
equipment:
Use suitable PPE (Personal Protection Equipment) as per site regulations and as appropriate for the task. It
is the responsibility of the person performing the task and their employer to ensure that all suitable PPE is
provided and worn at all times. Detailed below is some of the suggested PPE during installation and commissioning of the unit.
Before installation
Ensure that:
• The proposed method of mounting is adequate to support the total operational weight of the unit. “Dry
Weights” are given on the nameplate and the product sheet.
• Nameplate Data: When further pressure tests are carried out, the pressure applied shall not exceed 1.3
times the maximum operating pressure ( PS) given on the nameplate.
• When ancillary pressure equipment, such as a receiver, is supplied on a frame with a unit, but not a pipe to
it, the parts must be treated as separate components and data taken from individual nameplates.
• Rotating blades – dangling items of clothing, jewellery or any items that could be pulled into the fan set are
a hazard . Keep safe working distance from the fan plate
CAUTION
All wo rk o n t he u nit s mu st be car ried out by qualif ie d pe rson nel. Inst alla tion and
maintenance manual must be kept with unit at all times. Ensure that instruction manual is
understood before installation Ensure working environment is suitable.
Head protection Foot protection
Hand protection
High visibility clothing Eye protection
ELECTRICAL VOLTAGE
Ensure that
1. The power supply is isolated before any installation or maintenance work is carried
out.
2. The voltage, working fluid and the maximum working pressure stated on the product
nameplate is suitable for the working environment.
PROTECTIVE CLOTHING
Sharp edges on the casework of the units and coil fins are a possible cause of cuts to
fingers and hands. Appropriate protective clothing /gloves should always be worn.
Health and Safety
Searle Air Cooler
• The fan guard should not be removed nor should the fanset be removed from the unit.
• During installation and maintenance, ensure that:
• The unit is installed and maintained by qualified personnel only.
•
When pressure testing is carried out, the pressure applied shall not exceed 1.3 times the maximum
operating pressure given on the nameplate of the unit.
• The temperature of coils with vinyl-coated fins does not exceed 150°C (e.g. during brazing), as toxic fumes
would be produced.
Be aware of burn hazard:
2. WARRANTY PROCEDURE
This warranty applies to all units detailed in the price list and, unless otherwise stated in product literature or
specific contracts, provides for a manufacturer’s guarantee of twenty four months from date of dispatch against
faults in workmanship or materials.
When submitting a warranty claim the following information is required:
• Customer’s original reference number job / order number.
• Kelvion’s job number / advice note number.
• Type of unit and serial number.
• Date of installation.
• Details of defect.
When providing details of the defect, please give as much information as possible, ie.
• Was the unit satisfactory on delivery?
• Frequency of fault (continuous / intermittent)
• Is the unit leaking ? (+ location of leak)
Items manufactured by Kelvion:
No work should be undertaken to resolve the problem either by the customer or a 3rd party until approved by
Kelvion – failure to do so could invalidate the warranty.
The item may be replaced or rectified if the guarantee claim is valid.
For items that have been installed, Kelvion have the right to decide if rectification on site is suitable and who
should undertake the work or whether to return / replace the unit(s). For items where Kelvion decides to
replace, the original faulty item must be returned. All items which are returned will be inspected.
If the guarantee claim is not valid the customer will be advised and fur ther instructions requested, either to
return the item or to issue an official order to replace or rectify the item.
If you require a replacement product the buyer will be asked to supply a purchase order, when the unit has been
returned and evaluated, the buyer will be notified by Kelvion if the claim is valid.
Items NOT manufactured by Kelvion:
• The item will be replaced and the customer will be invoiced
• The item will be returned to the supplier for evaluation.
• If the claim is valid the credit received from the supplier will be passed on to the customer.
Burn hazards
1. Burn hazards from pipes and pipeline components when the heat exchanger temperature
exceeds 60°C.
2. Bu rn caused by refr igerant coming i nto contact w ith the skin or eyes .
5
3. LABELLING ON UNITS
Labelling on KEC, KME, TEC, DSR, LSR, SM
1
2
4
5
3
Labelling on FM
1
2
3
5
6
7
3
7
8
8
6
Labelling
Searle Air Cooler
3. LABELLING ON UNITS
1. Kelvion logo
2.Searle logo
3. Danger and Caution labels
4.
Pass label
5. Name Plate 6.
Plate label
6. Fork lif t points 7. Fan numbering label
Kelvion
Kelvion
DSR83-3 AL
bar
21
4 X 25 W
220V - 1Ph - 50hZ
240V - 1Ph - 50hZ
Total AMPS
144Kg
1.04
1.12
KEC30-4L
44L L1Ph S3G
PI
1. Maximum operating pressure suitable for
this product.
4. Fluid working group. Reference to PED
classification, i.e. group 1 or group 2
2. If no safety device settings are
detailed, it is the installers’ responsibility
to ensure an appropriately sized safety
device is installed to prevent the product
going over its maximum pressure rating.
Failure to do so may result in component /
product failure.
3. Electrical supply information
Kelvion
DSR83-3 AL
bar
21
4 X 25 W
220V - 1Ph - 50hZ
240V - 1Ph - 50hZ
Total AMPS
144Kg
1.04
1.12
3
4
1
2
7
4. PACKAGING
Packaging
Please p ay attention to fo llowing sym bols which can be i dentified on Kel vion packing c artons.
Woode n crate:
• GSL wooden crates incorporate heat treated timber as appropriate aligning with export requirements.
• Care s hould be taken whe n removing unit s from packing to e nsure unit is not d amaged
Keep d ry This way up
Fragile
Recycle Stacking
3
Searle Air Cooler
5. LOADING AND HANDLING
Appropriate equipment should be used to load, un-load and locate the unit in its operational location. Consideration of the products size and weight should be taken ensuring that any equipment (such as fork lifts) meets relevant
national standards.
1. Fo r transpor tation of unit co olers is inver ted and bolted to t he base of the pack ing case, Care mu st be taken while
removing the packaging and installing to prevent damage, particularly of the finned coil.
2. The drainpan is fitted to the unit (in its transit/lifting position) for transportation. Remove the draintray by
removing the four fixings and then fit the hexagonal drain connection and gasket into the hexagonal well inside
the drai ntray. Hand tigh ten this assemb ly using the knu rled nut on the ou tside.
3.
Refit the draintray in its transit position (fixings loose) making use of the slots in the tray so that it moves into
contac t with the und erside of the co oler bottom p late so that the we ight is trans ferred direc tly to the chass is of the
unit whe n lifting in to position.
Note: for indus trial cooler s the points de tailed above do no t apply.
Forklift
9
Loading and handling
1. Al l large units ha ve recommended po ints for use wh en fork or strop li fting, bot h are clearly mar ked.
2. Care should be taken to protect the unit against mechanical damage while unloading.
3. Extre me care must be ta ken to protect coil co nnections a nd fins.
4. Upon receipt, the units should be visually inspected and the supplier notified (within seven days) of any damage or
shortages.
min PL +30
min PL +30
KEC 80/95
KEC 80/95
Searle Air Cooler
6. LOCATION GUIDANCE AND INSTALLATION
Unpacking K EC and KMe
1. Remove the box/crate packaging
2. On most KEC units remove the draintray by removing the four fixings and then fit the hexagonal drain connection and
gasket into the hexagonal well inside the draintray. Hand tighten this assembly using the knurled nut on the outside.
When the cooler is in position ensure that the drainpan is dropped down into the operating position before tightening
its fix ings. For the K ME units will h ave a cable tie fixi ng the draintr ay along the side of t he unit
3. Place into position using the location guidance.
11
Unpacking DSR and LSR
1. Remove crate packaging/plastic wrapping
2. On all DSR and LSR units the draintray is already fitted, remove the four fixings securing the unit to the wooden pallet
and place into position using the location guidance.
Location guidance and
installation
Searle Air Cooler
Unpacking SM
1. Remove plastic wrapping
2. On all SM uni ts the draint ray is already fit ted, remove the fix ings/metel bra ckets securing t he unit to the wood en pallet.
Place into position using the location guidance
Unpacking TEC
13
A
A
The loca tion of the unit s hould be careful ly selected to e nsure that:
1. Air distribution from the cooler is not adversely aected by obstructions and is appropriate for the size and shape of
the room, optimum air distribution should be targeted. Product loading must be in accordance with good refrigeration
practice.
2. Air entering the cooler is not obstructed
3. The unit mus t be installe d level in both dire ctions
4. Maintenance access should be considered when locating the product, including adequate space for heater withdrawal when appropriate
5. Th e unit is not subje cted to physica l loads
Models
A B C D
mm mm mm mm
TEC all models 120 120 - -
KEC all models 275 - - -
KME 50 , 60 350 - - -
KME 80 400 - - -
KME 95 450 - - -
KME 115, 140, 175 500 - - -
KME 232, 282 650 - - -
KME 352, 353 850 - - -
DSR all models 300 - 600 1200
LSR all models 1200 - 800 1200
SM 16 800 - - -
SM 20 1000 - - -
SM 24 1200 - - -
SM 30 1500 - - -
FM all models 2000 - - -
A
A
B
C
A
A
A
A
C
D
Min services access both ends
• DSR - 300mm
• LSR - 400mm or 1200 for heat removal
Air Flow
A
Location guidance and
installation
Searle Air Cooler
Mounting the unit
1. On all coolers mounting slots are provided, make sure the location guide is observed before you hang
the unit
2. Only fix the unit using the mounting slots provided (refer to unit dimension drawings for slot measurements)
Warning
In case of improper installation, leak of working fluid can occur during operation of
the cooling equipment, this can lead to injuries or damage to yourself or property.
15
Installation and Location
guidance
7.5
4.0
20
Mounting a TEC
1. TEC’s that are wall mounted an additional drainpan needs to be fixed to the cooler (a kit is available
separately).
2. This is achieved by removing the panel fixing screws around three sides of the air-o face, oering up the ver tical drainpan and replacing the screws through the holes in the drainpan, securing it in place.
3. The blanking piece provided should be fitted in the original drain position. If defrost is required on wall mounted units, refer to fitting instructions below.
Part Number
WT...Pan
Part Number
WT/LT Kits
Note: Guard is supp lied as part of the defr ost it (WT/LT kit s)
Searle Air Cooler
7. PIPEWORK
Pipewor k to and from the cool er should be sui table for:
• Working fl uid (guidance ca n be provided by Kelv ion represent ative or pipe sup pler)
• Atmospheric conditions
• Maximum operating pressure including relevant safety factor
Damage caused by incorrect installation will invalidate the
manufacturer’s warranty obligations.
Pipework to and from the coolers should be selected to suit the application and not the connection size of the unit.
Pipewor k sizes should be sel ected to ensure p ressure drop does n ot exceed an equiva lent of 2K at full lo ad conditions .
Pipework should be supported independently from the cooler unit in a way that prevents the transmission of vibration
to the units. A qualified engineer should install the refrigerant pipework to a high standard of refrigeration practice. All
pipework used must be clean and to refrigeration quality, all cuts should be made using a pipe cutter, never a hacksaw,
and care m ust be taken to remove a ll burrs and swa rf.
Braze using silver bearing brazing rod and ensure that all joints are cleaned before brazing. During brazing care should
be taken to ensure that all components near join ts should not be excessivel y overheated, a wet cloth should be applied
where necessary. Dry nitrogen should be passed through the pipework during brazing to minimise oxidisation.
WARNING!
When brazing and leak testing are complete the suction line should be insulated with 3/4” thick Class ‘O’ insulation. The
unit has been thoroughly tested during manufacture however after on site brazing is complete all pipework should be
pressur e tested for leaks t o maximum of 1. 3 capacity pre ssure
Be aware of the below hazards during pipework and refrigerant charging:
In the event of in jury, seek medical att ention immediatel y.
It is the responsibilit y of the installer to ensure piping to and from the condenser is suitable for the application, although
guidance from your Kelvion representative can be provided.
Unless o therwise s pecified, t win section u nits should b e connected in p arallel to each o ther, not in series; fa ilure to do so
will result in excessive fluid pressure drop and a corresponding loss in performance.
All pipework and fittings should be pressure tested upon installation completion in accordance with relevant regulations
or legis lations. Any p ressure test sh ould not exceed the u nits’ maximu m operating p ressure or the pre ssure rating of a ny
safety devices.
Use appropriate PPE (personal protection equipment) during pipework, refrigerant charging
and commi ssioning. Dur ing brazing ensure the temperature of coils with vinyl coated fins d oes
not exceed 1 50°C as toxic fum es would be produ ced
Frost burns Cuts or WoundsHeat burns Inhalation
17
Condensate drainage
8. CONDENSATE DRAINAGE &
CONDENSATE PUMP KIT OPTIONS
In most co oler units on ce the unit is in pl ace the drain tra y MUST slope dow nwards towards t he drain connec tion. Ensu re
that drainline size is equivalent to that of the drain connection and that it has an adequate fall. It is essential that the drainline includes a trap, fitted outside the coldroom. Easy disconnection of the drainline will ease cleaning and the replacement of tr ay heaters and fa n sets.
On the KE C and KME the fixi ngs at the rear of th e drain tray shou ld be loosened to a llow the back of th e drain tray to drop
into it’s operating position. The drain connection is 1” BSP (M) nylon on the KME and KEC and should be hand tightened
when connected to the drain. Ensure that drainline size is equivalent to that of the drain connection and that it has an
adequate fall.
Condensate pump kit options
The condensate pump option is only available on high temperature units as a factory fitted item or can be bought as a
spare. The P ump kits are to th e DSR and LSR unit s. Please see be low fitting i nstructi on guides.
DSR Condensate pump instructions
1. Rem ove the end panel of t he cooler.
2. Fit the sensor to the bracket and fit pump and sensor bracket as shown in the diagram, ensuring the brackets are
pushed right down.
3. Exten d the discharge l ine with 6mmI D hose as required .
4. Insert t he Rubber Bung i n the sump drain ou tlet with a blu nt instrumen t.
5. Co nnect the el ectric cabl e to single phase, 5 0Hz 230V mains sup ply.
Note
• Clea n the Sump and Pump fi lter 1 week afte r installati on, then at leas t 4 times a year there after.
• Pump i s fitted with 3 mi nute (approx) run o n timer, activa ted when float retu rns to bottom pos ition.
• Pump ove rload must be re set by interrupt ing the power sup ply.
Searle Air Cooler
9. STORAGE
1. To avoid cont amination an d corrosion, the u nits must be s tored in dry and c lean area.
2. Sto ring for long pe riods is not recom mended, but wh ere this cannot b e avoided the fan mo tors must
run for a mi nimum of 2 hours pe r month. Failure t o do so will invalid ate manufact urer’s warrant y.
General
Upon receipt, the units should be visually inspec ted, any transport damage and / or missing parts must be
recorde d on the deliver y note and the man ufacturer no tified in writi ng within seven d ays . Please ensur e:
• The pipework shows no signs of damage
• The fa nset / motor termin als box lids are not c racked or showing s igns of obvious d amage
• The electrical screw terminals in control panels and motor mountings should be checked for security.
3. Units are not portable and are only for permanent installation.
The units are de livered with a 1 bar hol ding charge (N2) which shoul d be safely release d through the
schraeder valve on the gas inlet header before removing the brazed header / manifold caps.
1. 4. If the holding charge is not present the manufacturer should be contacted immediately.
1. 5. U nits that have b een packed in cardb oard must be sto red in a dry envi ronment to prevent a ny water damage
Damage caused by incorrect installation / unit mis-handling will invalidate the manufac turers warranty
10. TEV SELECTION
TEV Selec tion for DSR, LSR, SM , FM
It is important that the TEV is correctly sized and, for maximum performance, located within 100mm of the distributor
inlet. The TEV size should be determined using the maximum operational capacity and the minimum valve pressure
drop. This occurs at the minimum condensing pressure. An externally equalised TEV must be used. When calculating
the minimum TEV pressure drop, allowance must be made for the cooler’s distributor system. For units with inlet sizes
of less than 7/8” this allowance is 2.0 bar for R134a, or 3.0bar for R22, R404A, R407/B/C, and R507. Units with inlets of
7/8” or larg er may be fitted wi th ‘Dual Orifi ce’ distributo rs ( Please see par t 11 for instr uctions on Du al Orifice)
TEV Selec tion for KEC, KME, TE C
It is important that the TEV is correctly sized. The TEV size should be determined using the maximum design capacity
and the minimum valve pressure drop. This occurs at the minimum condensing pressure. An externally equalised TEV
must be used. When calculating the minimum valve pressure drop, allowance must be made for the cooler’s distributor
system.
R404A, R407C , R410A, R507A , R744 1.5 b ar
R134a 1.0 bar
On models TEC1, TEC2 and TEC3 an internally equalised TEV may be used. On units TEC3.5 to TEC8 an externally
equalised TEV must be used and an allowance of 1 bar for R134A and 1.5 bar for R404A, R407C, R410A and R507A
should b e made for the pres sure drop across t he distribut ion system.
19
11. DUAL ORIFICE
The interchangeable Orifice Distributor is an improvement on the standard flange mounted type in that:
• Each di stributor i s fitted with a du al orifice assem bly.
• Each di stributor ha s a screwed cap to faci litate orifice s election.
• Each distributor has a Schraeder valve to facilitate pressure testing during operation.
System performance
The performance of any system fitted with this type of distributor, can still be influenced by the TEV. When selecting a
TEV, allow for t he following di stributor s ystem pressure d rop.
For R13 4a 2 bar
For R404 A,R407A/B/C ,R507A 3 bar
IMPORTANT! When removing or r eplacing the di stributor sc rewed cap, do not pla ce excessive stra in upon the dist ributor leads.
If, when the coil is operating at or close to its design temperature, the TD is above normal, that is to say, the dierence
between the air entering the coil and the evaporating temperature is too great (e.g. the evaporating temperature is
low), check the TE V superheat. If it is above 0.9 TD and will not respond to adju stment, it is possible that the distributor
pressure is excessive.
Dual Orifice
WARNING!
Goggl es must be worn wh en using the test co nnection as t here may be
liquid refrigerant in the distributor body cavity.
WARNING!
Before removing the distributor cap ensure tha t all liquid
refrigerant has been evacuated from this point by carefully
pumping the system down
Searle Air Cooler
To establish the pressure drop, pump the system down and fit a service gauge to t he 1/4” flare connection on the distributor
cap. Restart t he system. The dierence b etween the pre ssure at at the dis tributor and t he suction pre ssure is eect ively the
‘pressure drop’ . Using the graph below plot the pressure drop value on the requisite cur ve. The solid portion of the curve
represe nts the opera ting band of the de vice.
If the va lue falls out side this band , plot downwar ds from this poi nt to determine t he ratio. Mult iply the diame ter of fitted ori fice
by this ratio and the resultant is the diameter of the orifice required. If the larger of the two orifices is oversize, drill out the
smaller orifice to suit. Always drill undersize then recheck the pressure drop to determine whether further enlargement is
necessary. If the pressure drop is within upper limits of the curve (solid portion) but the TEV is unstable, the orifice must be
furt her enlarged to b ring the pressu re drop closer to the n ormal operat ing point.
Note
An extreme meas ure can be to discard the orifi ce assembly entirely. If th e problem still persis ts, it is possi ble that the TEV is
either f aulty, unders ized or lack s sucient refri gerant liquid subcooling. Thes e faults must b e corrected bef ore adjustmen ts
can be mad e to the distri butor system .
21
Dual Orifice
Schraeder valve c/w
cap
Distributor cap
Gasket joint
264- 475-70 (512E3)
264 -475- 80(512E4)
Nozzle assembly
Distributor
body
inlet connection
12. EVACUATION
Fluid coolers using water or water-based solutions must be protected by adding anti-freeze in sucient concentration, as it
is not pos sible to drain th e system compl etely.
Note: The heat tr ansfer proper ties of a fluid va ry with the co ncentration o f additives.
Evacuate the system in accordance with standard refrigeration operating procedures, codes and regulations
Searle Air Cooler
13. ELECTRICAL INSTALLATION
If residual current or earth leakage protection devices are to be used in the supply, appropriate sensitivity levels should be
used. Up to 300 mA trip level may be required to avoid nuisance tripping, particularly with inverters. If greater protection is
required then this can be provided for individual circuits.
Electrical connection is to individual motor terminal boxes, or a unit terminal box or control panel., Wiring instructions are
provided within this document. Generally `cage clamp’ type terminals are used. Pushing a correctly sized screwdriver into
the square aperture adjacent to the conductor entry opens the terminal. It is the installer’s responsibility to ensure cable
entr y is fit for purpose and that w here appropria te cable suppor t is applied. C are should be taken to ensure t he box IP rating
is not comp romised by the el ectrical su pply cable en try.
Conduc tors between 1 and 2.5mm² are accommodated. Where wiring is to a motors individual terminal box the facility for
additional casework earth points are provided. When motor wiring is routed within the unit side covers, ear th studs are pro vided under these covers for additional earth points on the casework. All AC single-phase motors have automatic internal
overload protection, and can be used in conjunction with a high quality ` triac’ type speed controller. Some three phase AC
motors a re also fitted w ith interna l thermosta ts, wired ba ck to their termi nal blocks ( TK). Check t hat the fan rota tion of 3 phase
units i s correct.
Reversing any two p hases of the 3 phase AC motor supp ly can change the rotatio n. Reversing two p hases of the EC motor s
won’t change the rotation. In optional AC fan Contactor boxes the fan contactors are energised through these auto-reset,
normally closed, thermo¬stats. When internal thermostats are not used three phase motors MUST be protected against
overload and single phasing. Over loads must be set to cut out at F LC + 10% (FLC + 15% at - 30°C) Failure to comply w ill render
motor warranties void.
Kelvion would recommend as general rule that each cable or group of cables will be supported at no greater than 500mm
intervals; but if national legislation recommends otherwise this should be followed. Cable size is determined by the motor
current, with the necessary duration for unit operating temperature. High Temperature cable is used where necessary. It is
the responsibility of the installation contractor to ensure the complete installation is appropriately electrically tested according to national legislation.
Terminated Units
If no isolator is on the unit it is the installers’ responsibly to ensure appropriate isolation is incorporated within the system.
With or without unit isolation; it is the installers’ responsibility to provide over and short circuit protection for the installation.
Controls
Control options are supplied according to customer specification. Individual instructions are provided to guide the setting
and use of control options. When a control option is specified, the unit will contain the necessary equipment to isolate and
provid e over current and sh ort circuit pr otection for t he unit.
Wiring Diagrams and Documentation
Wiring d iagrams and ot her relevant doc umentation w ill either be sup plied in the uni ts’ junctio n box or in this docu ment
ELECTRICAL VOLTAGE: Ensure that
1. The p ower supply is i solated before an y installati on or maintenanc e work is carried o ut.
2. The voltage, working fluid and the maximum working pressure stated on the product nameplate is su itable for the w orking enviro nment.
23
Wiring diagrams
14. WIRING DIAGRAMS
Wiring diagrams for KEC, KECX, KECP
KEC 10, 15 & 20 (Fan & Defrost)
Note:
1. Su pply 230V - 1PH - 50 Hz.
2. A pplies To KEC Range Onl y:
• KEC 10 - Standa rd
• KEC 15 - Standard
• KEC 20 - Standard
3. High Spee d: Connect Su pply To
Terminal Bloc k Terminals 1 an d N.
4. Low speed: Lin k terminal bloc k terminals 1 & 2
5. De frost heaters ( If required). Termin al Box: 218- 901-01 3.
271-111-145
KEC 10, 15, 20, 25 & 30 (FAN & DEFROST)
Note:
1. Su pply 230V - 1Ph - 50 Hz.
2. A pplies To KEC Range
3. (Single Fan Only):
• KEC 10 - S pecial
• KEC 15 - S pecial
• KEC 20 - Sp ecial
• KEC 25 - Sp ecial
• KEC 30 - S tandard
• KEC 10 - S tandard
4. Defrost H eaters (If Requ ired).
5. Termina l Box: 218-9 01-013 .
271-111-146
Searle Air Cooler
KEC 35 & 55 (Fan & Defrost)
Note:
1. Fan s Supply 230V - 1Ph - 5 0Hz.
2. A pplies to KEC ran ge only
• KEC 35 - S tandard
• KEC 45 - Sp ecial
3. High Spee d: Connect Su pply To
Terminal Bloc k Terminals 1 an d N.
4. Low Speed: Li nk Terminal Bl ock
Terminals 1 & 2.
5. Defrost heaters (if required).
6. Terminal Box: 218-901- 015.
271-111-147
KEC 35, 40, 45, 55 & 70 (Fan and DF)
Note:
1. Fan s Supply 230V - 1Ph - 5 0Hz.
2. De frost Heater s Supply Optio n
3. 230V - 1Ph - 50H z or 400V - 3Ph - 50Hz.
4. Remove Links B efore Connect ing 3Ph Supply.
5. A pplies To KEC Range Onl y:
• KEC 35 - S pecial
• KEC 40 - S tandard
• KEC45 - Standard
• KEC 55 - St andard
• KEC70 - Standa rd
6. De frost Heater s (If Required).
7. Terminal Box : 218-901 -014.
271-111-148
25
Wiring diagrams
Wiring diagrams for KME, KMCX, KMCP
KME 50-95 (DEFROST HEATERS)
Note:
1. De frost Heater Su pply 400V - 3Ph - 50 Hz.
2. A pplies To KME Range Onl y.
• KME 5 0-95
3. For Fan Arr angement - Ref. Drg . 271-111-125.
4. Terminal Box(S): 290-660-W; 290- 661-W.
KME 50-175 (1 PHASE FAN SUPPLY)
Note:
1. Fan S upply 230V - 1Ph - 50 Hz.
2. A pplies To KMe Range Onl y.
• KME 5 0-60 1 Fan.
• KME80 -95 2 Fans
• KME 115-140 3 Fans
• KME 175 4 Fans
3. For Heater Arrangement:
• KME50- 95 - Ref. Drg. 271-1 11-171
• KME 115-175 - Ref. Drg . 271-111-17 2
4. Terminal Box(S): 190-631-W(2F);
190-632-W(3F); 290-633 -W(4F);
290-641-W(1F).
271-111-171
271-111-124
Searle Air Cooler
KME 115-175 (DEFROST HEATERS)
Note:
1. De frost Heater Su pply 400V - 3Ph - 50 Hz.
2. A pplies To KMe Range Onl y.
• KME 115-175
3. For Fan Arr angement - Ref. Drg . 271-111-125.
4. Terminal Box(S): 290-660-W; 290-661-W.
KMe50-175 (3 PHASE FAN SUPPLY)
Note:
1. Fan S upply 400V - 3Ph - 5 0Hz.
2. A pplies To KME Range Onl y.
• KME 5 0-60 1 Fan.
• KME 8 0-95 2 Fans
• KME 1 15-140 3 Fans
• KME 1 75 4 Fans
3. For Heater Arrangement:
• KME 5 0-95 - Ref. Drg. 27 1-111-171
• KME1 15-175 - Ref. Drg. 27 1-111-172
4. Terminal Box(S): 290-634 -W(2F); 290-635-W(3F); 290- 636-W(4F); 290-642-W(1F).
271-111-172
271-111-125
27
Wiring diagrams
Wiring diagrams for TEC, TECX, TECP
TEC (1 PHASE FAN SUPPLY)
Note:
1. Fan Supply 230V - 1Ph - 50Hz.
2. A pplies To TEC Range Only.
• TEC 1 -3.5 1 Fan.
• TEC 4 -5 2 Fans
• TEC 7 & 8 3 Fan s
3. For Heater Arrangement:
• Ref. Drg . 271-111- 451
4. Terminal Box(S): 4 4-10- 602-W; 110- 621-W.
TEC DEFROST HEATERS
Note:
1. Su pply 230V - 1Ph - 50 Hz.
2. A pplies To TEC Range Only.
3. For Fan Arrangement:
• Ref. Drg . 271-111- 450.
4. Terminal Box(S): 218-143-110.
271-111-450
271-111-451
Tray Heaters ( +
Wall mount option)
Searle Air Cooler
DSR 19 & 22 (FAN SUPPLY)
Note:
1. Su pply 230V - 1Ph - 50 Hz.
2. A pplies To DSR Range Onl y:
• DSR 19, DS R 22
3. High Spee d: Connect Su pply To
Terminal Bloc k Terminals 2 A nd N.
4. Low Speed: Li nk Terminal Bl ock Terminals 1 & 2 .
5. Terminal Box: 210-604-W
DSR 19 & 22 (FAN & DEFROST)
Note:
1. Su pply 230V - 1Ph - 50 Hz.
2. A pplies To DSR Range Onl y:
• DSR 19, DS R 22
3. High Spee d: Connect Su pply To
Terminal Bloc k Terminals 2 A nd N.
4. Low Speed: Li nk Terminal Bl ock
Terminals 1 & 2.
5. H eater Option: Rem ove Link Before
Connecting 2nd Phase Supply.
6. Terminal Box: 210-608-W
DSR 36 to 83 (FAN SUPPLY)
Note:
1. Su pply 230V - 1Ph - 50 Hz.
2. A pplies to DSR Rang e Only:
• DSR 36 , 42 (2 fan)
• DSR 51, 62 ( 3 fan)
• DSR 68, 83 (4 fan) 62 ( 3 fan)
3. High sp eed: Co nnect supply to
termina l block terminal s 2 and N
4. Low speed: Link terminal
block te rminals 1 and 2
5. For heater arrangement,
ref. DRG 271 -113-4 03
6. Terminal box(s): 210-604-W(36&42)
210-605 -W(51&62); 210-606-W(68&83)
Wiring diagrams for DSR
271-113-405
271-113-400
271-113-401
29
Wiring diagrams
DSR 36 to 83 (DEFROST HEATERS)
Note:
1. Su pply 230V - 1Ph - 50 Hz.
2. A pplies To DSR Range Onl y:
• DSR3 6 To 83
3. Heater O ptio n: Remove Link Befo re Con nec ting
2nd Phase Supply.
4. For Fan Arra ngement, Ref. D rg. 271-113 -401.
5. Terminal Box: 210-609-W.
271-113-403
DSR 100 & 116 (FAN SUPPLY)
Note:
1. Su pply 230V - 1Ph - 50 Hz.
2. A pplies To DSR Range Onl y:
• DSR100
• DSR 11 6
3. For Heater Arrangement,
Ref. DRG. 271-113- 404.
4. Terminal Box: 210-607-W.
DSR 100 & 116 (DEFROST HEATERS)
Note:
1. De frost Heater Su pply 400V - 3Ph - 50 Hz.
2. A pplies To DSRRange Onl y.
• DSR 100
• DSR 11 6
3. For Fan Arr angement - Ref. Drg .271-113 -402.
4. Terminal Box: 21 0-610- W.
271-113-402
271-113-404
Searle Air Cooler
Wiring diagrams for SM
SM 16 to 30 (1 & 2 FAN SUPPLY)
Note:
1. Fan s upply 400v - 3 ph - 50hz.
2. A pplies to SM rang e 1&2 fan only.
3. Fan junct ion box.
4. For heater arrangement:
• REF. DRG. 27 1-112-215 or/
• REF. DRG. 27 1-112-215.LV
(As Applicable).
5. Termina l box(s): 290- 634-w( 2F);
290-642-W(1F)
SM 16 to 30 (3 & 4 FAN SUPPLY)
Note:
1. Fan s upply 400v - 3 ph - 50hz.
2. A pplies to SM rang e 3&4 fan only.
3. Common fan junction box.
4. For heater arrangement:
• REF. DRG. 27 1-112-215 or/
• REF. DRG. 27 1-112-215.LV
(As applicable).
5. Termina l box(s): 290- 635-w( 3F);
290-636-W(4F)
SM 16 to 30 (DEFROST SUPPLY)
Note:
1. De frost heater sup ply
400v - 3 ph -50Hz.
2. A pplies to SM rang e only:
3. For clarity multiple defrost
Heaters not shown.
4. For fan arr angement ref. Drg
271-1 10-101 .
5. Termina l box(s): 23-0 00-623
(L1&L2); 23-000-624(L3).
6. For peripheral heater
arrang ement ref. Drg. 271 -112-214.
271-110-102
271-110-101
271-112-215
31
Wiring diagrams
Wiring diagrams for FM
FM 20 to 36 (2 SPEED FAN)
Note:
1. Fan s upply 400v - 3 ph - 50hz.
2. A pplies to FM range o nly.
3. 2 Speed option only.
4. For heater arrangement:
• Ref. Drg . 271-112-211 or/
• Ref. Drg . 271-112-215.LV
(As applicable).
5. Terminal box: 218-143-202.
FM 20 to 36 (4 FAN SUPPLY)
Note:
1. Fan s upply 400v - 3 ph - 50hz.
2. A pplies to FM range o nly.
3. Common fan junction box.
4. For heater arrangement:
• REF. DRG. 27 1-112-215 or/
• REF. DRG. 27 1-112-215.LV
(As applicable).
5. xTerminal box: 218-143-202.
FM/SM Peripheral heater
Note:
1. Su pply 230v - 1ph - 5 0hz.
2. A pplies to FM/SM r ange only.
3. For fan arrangement:
• REF. DRG. 27 1-112-213 or
• REF. DRG. 27 1-112-215-LV or
• REF. DRG. 27 1-112-215
4. Terminal Box(S): 218-143-101 .
5. Option Dual Phase Peripheral
6. He ater Connec ted To L1 And L2.
271-112-210
271-112-211
271-112-214
Searle Air Cooler
FM 20 to 36 (DEFROST DELTA/STAR)
Note:
1. De frost heater sup ply 400v - 3ph - 50Hz.
2. A pplies to FM range o nly
3. For clarity multiple defrost
Heaters not shown.
4. For fan arr angement ref. Drg
271-112-210 And 271-112-211.
5. Termina l box(s): 21- 000-623 (L1&L2);
23-00 0-624(L3).
6. For peripheral heater A rrangement
ref. Drg. 27 1-112-214.
FM 20 to 36 (DEFROST DELTA)
1. Note:
2. De frost heater sup ply 400v 3ph-50Hz.
3. Applies to F M range only
4. For clari ty multiple d efrost heater s
not shown.
5. Fo r fan arrangem ent ref. Drg
271-112-210 And 271-112-211.
6. Termina l box(s): 21- 000-623 (L1&L2);
23-00 0-624(L3).
7. For peripheral heater
Arran gement ref. Drg. 27 1-112-214.
271-112-212
271-112-213
33
Wiring diagrams
Wiring diagrams for LSR
LSR 12n (DEFROST WIRING)
Note:
1. De frost heater sup ply 400v - 3ph - 50Hz.
2. A pplies to LSR ra nge only
3. For clarity multiple defrost Heaters not shown.
4. For fan arr angement ref. Drg 2 71-115-17 3-F.
5. Termina l box: 290- 668-w or 431 -010 -124
LSR 12n (FAN SUPPLY)
Note:
1. Fan s upply 400v - 3 ph - 50hz.
2. A pplies to LSR ra nge only.
3. Common fan junction box.
4. For heater arrangement:
• Ref. Drg . 271-115-17 3-E
5. Terminal box: 290-636-w.
271-115-173-E
271-115-173-F
Searle Air Cooler
15. DEFROST
Air cooling evaporators whose surface temperature is lower than the dew point of the air they are cooling will accumulate
moistu re from the air. When t he surface te mperature is b elow freezing, t his moistur e will be depos ited in the form of f rost and
eventua lly, if left, wi ll restrict h eat transfer an d air flow.
Various methods are used for the removal of frost . When the air inlet temper ature is at 3°C or higher it is possible to use natural defrost by just switching o the refrigeration flow for a period. At lower temperatures heat needs to be added and the
fans sw itched o to preven t the heat bein g blown into the s tore. The heat ca n be from elec trical elem ents passi ng through or
adjacen t to the fin, hot/ warm refrigera nt gas passing through the tubes or, less commonl y, water casc aded over the fins or a
warm gly col solution in a se condary sy stem of tubes.
Defrost options
Hot-gas defrost can be the quickest and most ecient common method of defrost. The fact that heat is applied to all the
same surfaces that provided the cooling means that frost is melted quickly and evenly. The low temperature of the heat,
compared to electric defrost, results in less heat, in the form of steaming condensate, escaping from the cooler into the
coldstore.
HG(E)A, HG (E)B – Reverse Cycle
Generally used on systems with one or two evaporators. During defrost the condenser is used as an evaporator and the
refrige ration sys tem acts as a he at pump. During d efrost the flow i s in the reverse di rection as i t is usually mos t convenient to
redirec t flow close to the compressor. As the evaporator ac ts as a condenser in this regime the hot gas is at high pressure/
high temp erature givi ng a superior per formance in com parison to a hot gas s ystem.
HG(E)C, HG(E)D
Where th ere are two or more ev aporators on a ref rigeration s ystem it is possible to def rost one using th e hot-gas generated
in the operatin g of the other. This arr angement allows defros t flow to be in the same direc tion as cooling flow. Althou gh this
arrang ement can oper ate on a two evapor ator system the q uantity of lo w pressure, super h eated gas is minim al, therefore it
is recommended that this arrangement is used on systems with three or more evaporators, with one evaporator on defrost
whilst the other evaporators are operational, generating the defrost heat.
Defrost He ader - HG(E)B, HG(E)C
Witho ut a defrost hea der the distr ibution sys tem causes a rest riction red ucing the flow ra te of hot-gas. Th is reduces the ra te
of defrost and can result in condensed refrigerant logging in the coil and preventing even defrosting. This problem is more
likely the less superheat the hot-gas has.
Drain Pan Defr osting – HGE
Hot gas can be used fo r drain pan defros t but the lower heating tem perature makes it d icult for heat to reach the ex tremes
of the drain-pan. Also, the drain-pan is more exposed to the room temperature and will quickly drop to room temperature
when the defrost is terminated, with the possibility of condensate still running of the coil to freeze in the pan. Using electric
defros t in the pan overcomes t hese disadva ntages, par ticularly as it c an be controlle d to operate for a shor t time before an d
after t he main defros t.
The best configuration of hot gas coil and tray defrost is to ensure that the hot gas enter s the tray matrix first then enter s the
coil, th is is arranged v ia the valve sta tion supplied a nd fitted by the re frigeration c ontractor.
Initial Defrost Termination Settings
Time/Time defrost system
KMe, KEC , TEC, DSR , LSR , FM, SM: 30 minu tes
Time/Temperature termination system
TEC, KE C, KMe - Elect ric defrost: m inimum sett ing 4.5°C
DSR, LS R, SM, FM - Electric defrost: minimum setting 11 °C
35
Coil heathers
Time/Pressure termination system
All cool er units Revers e cycle/hot ga s defrost
Pressur e equivalent to 25° C SST of the sys tem refrigeran t
Defrost Termination
If a defrost termination thermostat is to be fitted then the normal starting position of the defrost probe is 1/3rd of the way
along the coil face (air on) and about 2/3rds up away from any heater elements. Once the system is in operation it may be
necessa ry to relocate t he probe to the are a of the coil where ice re mains the long est during defr ost (possibl y air o face).
16. COIL HEATERS
Coil blo ck heaters are ei ther ‘U’ ben t or straight a nd they have to be disc onnected fro m the terminal box a t the elect rical connection end and sometimes from the auxiliary terminal box at the refrigeration connect ion end of the cooler. These heaters
are with drawn and repla ced from the refri geration conn ection end of t he cooler takin g care to retain the ‘an ti-creep’clip s.
These clips may be re-used but will possibly need retensioning. To avoid damage to either the coil fins or the heater cable,
the heat er cable shoul d be inserted i nto a similar len gth of 1/4” OD coppe r tube and fed caref ully throug h the fins with a t wisting moti on. With care t he heater eleme nt sheaths can b e curved thro ugh 90° (minim um radius 600 mm) for removal and re fitting pu rposes. Before a ttempting t o refit a heater it is es sential to ens ure that the coil he ater hole has not b ecome obstr ucted
with ice a nd wherever poss ible the coil blo ck should be above f reezing point.
Drain Pan Heaters
Replacement is achieved by disconnec ting the elements from the terminal box(es) after removing the end cover and drain
pan, and unclipping/unscrewing the heater retaining clips.
17. INITIAL STARTING
Before running the unit for the first t ime, check that all guards, motor mountings and electrical covers are secu re, all
unnecessary terminal block links are removed and fans rotate freely. Remove any lifting channels.
• Chec k that that the u nit is secured i n the correct m anner specifi ed in sectio n 6. Only fix the u nit using the m ounting slot s
provided.
• Check that the fan rotation of 3 phase units is correct. Reversing any two phases of the motor supply will change the
rotati on (AC fan sets onl y).
Searle Air Cooler
Appropriate PPE should be worn when performing maintenance procedures, adhering to specific site requirements as appropriate. Any repairs to the condensers or dr y cooler should be under taken by suitably qualified personnel and relevant
national regulations should be adhered to, specifically with regards to handling of working fluids and brazing. If any advice
or guida nce is required wi th regards to fa ilure or repair s of Searle suppl ied produc t please contac t your local re presentati ve.
Regular attention should be paid to the system operating requirements to ensure that the operating parameters are within
the products/system specifications.
Every month check:
• Fan moto rs must be oper ated for at least 2 h ours every mo nth to prevent pos sible fanset fa ilure
• Coil condition, i.e clogging
Every 12 mon ths check:
• Security of fixings especially fan motor mountings.
• Refrigerant fluid pipework for damage and leaks.
• Moto r(s) rotate freel y.
• Electrical connections for security of attachment. Check all external surfaces annually for any corrosion or peeling.
Clean any aected area thoroughly with a wire brush, apply a coat of zinc primer and retouch with a suitable finishing
paint.
When necessary:
Clean the fins, guards and general casework. Care must be taken when cleaning the fins to prevent damage. A soft brush
and mild detergent solution is recommended.
The following routine annual maintenance is recommended:
• Check security of fixings especially fan motor mountings.
• Check refrigerant pipeline for damage and leaks.
• Chec k all motors rotat e freely.
• Check electrical connections for security of attachment.
• Chec k heat exchanger coi l for build-u p of debris or soil ing.
• Check all external surfaces annually for any corrosion or peeling.- cleaning any aected area thoroughly with a wire
brush before applying a zinc primer to the area and complete with an appropriate finishing paint.
• Clean any aected area thoroughly with a wire brush, apply a coat of zinc primer and retouch with a suitable finishing
paint.
• On bel t drive units , every month c heck belt tensio n and wear.
• On com pletion of work e nsure all objec ts are removed fro m the unit.
• Only original spare parts should be used if replacing failed components.
Component Replacement
• Pressure Transducer/ Pressure switches
• When r emoving the pre ssure devices saf ety goggles a nd gloves must be wo rn.
When starting the necessary maintenance routine please be aware of the following hazards
WARNING!
The Unit m ust be Elect rically Isol ated before cer tain Maintena nce Work is under taken.
Explosion risk
Keep the risk area free from
any ignition sources
Electrical voltage
The power supply is isolated before
any installation or maintenance work is
carried out.
18. MAINTENANCE
37
Maintenance
19. COIL CLEANING
It is essential that the heat exchanger coil is kept clean to maintain the designed heat transfer rate. General debris such as
leaves, paper, dust and pollen can be removed using a brush, w ith compressed air blowing against direction of airfl ow (Max
pressure 3bar) or an industrial vacuum cleaner.
The fin sho uld be brushed in t he longitudi nal directio n of the fins with a so ft brush.
Heavier greasy soiling must be removed using a high- pressure water/steam jet washer (Max pressure 3bar) against direction of ai rflow, at a dista nce of 300 to 400mm u sing a neutral c leaning agent i f required.
The jet of t he cleaner shoul d be held verti cal to the fin bank to avo id fin damage.
Any cleaning fluids should be suitable for use on both tube and fin materials, incorrect use of fluids could be corrosive
towards heat exchanger materials.
20. STANDARDS
• 97/23/EC Pressure Equipment Directive
• 2006/42/EC Machines Directive
• En 378; P arts 1 to 4; “Refr igeration sy stems and heat p umps, technic al safety and env ironmental re quirements”
• 2006 /95/EC Low Voltage D irective
• EN60204-1: 1999 Safety of machinery-Elec trical equipment of machines
• BS EN 610 32: 1998 Protect ion of persons a nd equipment by e nclosures, Prob es for verificat ion (propelle r fan units)
• BS EN13857:2008 Safety of machinery- Safety distances to prevent hazard zones being reached by the upper and
lower limbs.
21. INVALIDATION OF GUARANTEE
Kelvion accepts no liability according to Kelvion’s terms and conditions of sale, or for loss or damage arising as a result of:
1. Failure to install set up or put to work any part of the equipment in t he manner specified in t he Installation and
Maintenance Instructions
2. Failure to maintain the equipment in the manner specified in the Installation and Maintenance Instructions
3. Replacement par ts, ad ditional par ts or accessories manufac tured by persons ot her than Kelvion hav ing
been incorporated into, or attached to the equipment.
4. The equipm ent having bee n adapted for use, op erated or used in s uch a way as does conf orm to Kelvion’s
recommendation.
Searle Air Cooler
TEC1 & 2
525
378
172.5
40.8
180
52
A
36.3
For TEC1 & 5 & TEC 7
690
TEC1 & 2
865
TEC3.5 & 4& 2
1120
TEC5
1120
TEC6 TEC7
1528
1528
TEC8
For TEC6 & TEC8
378
223
260
41,6
Mounting Slot
16,5
R 4,0
R 7,5
210
120
120
TEC drawings and dimensions
Options - Part numbers of options supplied separately
Part type/
Description
TEC1
TEC2
TEC2
TEC3.5/4
TEC4
TEC5 TEC6 TEC7 TEC8
Ceiling Mounting
T2 LTKIT T3 LTKIT T3.5/4 T5/6LTKIT T7/8LTKIT
Wall Mounting
WT1/2LTKIT WT3 LTKIT WT3.5/4
WT5
LTKIT
WT6
LTKIT
WT7/8
Wall mounting kits
WT1/2 PAN WT3 PAN WT3.5/4 PAN
WT5
PAN
WT6
PAN
WT7
PAN
WT8
PAN
Model No. of fans A
Defrost
Coil kW Tray kW
TEC1 1 453 (x4) 275 2 x 250
TEC2 1 453 (x4) 550 2 x 250
TEC3 1 618 (x4) 700 2 x 325
TEC3.5 1 793 (x4) 900 2 x 425
TEC4 2 793 (x4) 900 2 x 425
TEC5 2 524 (x6) 1000 2 x 575
TEC6 2 524 (x6) 1000 2 x 675
TEC7 3 728 (x6) 1400 2 x 1030
TEC8 3 728 (x6) 1400 2 x 1030
TEC Dimension data
39
Product dimensions
Note: Maintenance access require at both ends of unit All dimensions in mm, F’ = Min heat Withdrawal
442 Casework
275 min
393
412
461 O/A Height
460 Drain pan
50
KEC 10 - 15
Heater removal
500mm (either end)
726 O/A length
700 Casework
133
133
1“D/Conn
352
352
48
705 Drain pan
F
KEC 20 - 30
Heater removal
600mm (either
end)
876 O/A length
850 Casework
133 133
1“D/Conn
427.5
427.5
48
855 Drain pan
F
KEC35 - 45
Heater removal
600mm (either
end)
1326 O/A length
1300 Casework
133 133
1“D/Conn
377.5
377.5
48
1305 Drain pan
653
653
550
F
Heater
removal
600mm
(either end)
KEC55 - 70
1826 O/A length
1800 Casework
133 133
1“D/Conn
48
1805 Drain pan
427.5 427.5475 475
F
Hanging bracket for KEC Models
Coil conns end
489 MTG CTRS
R6.5
25
30
15
17.5
46
524 O/A WIDTH
KEC drawings and dimensions
Model Dim A
KEC10 435
KEC15 435
KEC20 585
KEC25 585
KEC30 585
KEC35 1035
KEC40 1035
KEC45 1035
KEC55 1535
KEC70 1535
A MTG CTRS
Searle Air Cooler
KME 80, KME 95
Mounting CTRS
17.5
46
708
46
17.5
555.1
574.9
60
409.5
446.5
Drain
connection
1“BSP(M)
446.5
17.5
46
535.5
46
17.5
555.1
574.9
60
409.5
Mounting CTRS
A
KME 50
1007
715 Mounting CTRS
503.5
146
146
53
265
Heater
removal
1010.6 Overall drain pan
503.5
F
KME 60
Heater
removal
53
1332
1040 Mounting CTRS
666
146
146
265
666
1335.6 Overall drain pan
667.6
F
Heater
removal
53
1682
1390 Mounting CTRS
541
146
146
265
541
600
1686 Overall drain pan
842.5
F
KME 115, KME 140
Heater
removal
53
2357
2065 Mounting CTRS
675
146
146
265
503.5
675
503.5
2361 Overall drain pan
1180.5
Heater
removal
53
2732
1220 Mounting CTRS
600
146
146
265
466
600
466
2736 Overall drain pan
1366
600
1220 Mounting CTRS
F
KMe drawings and dimensions
KME 175
KME 232 &282
146
2065 Mounting CTRS
146
2357
2361
50
Heater
removal
F
F
Note: All dimensions in mm, F’ = Min heat Withdrawal
Model A F
KM*50 350 805
KM*60 350 1200
KM*80 400 1200
KM*95 450 1200
KM*115 500 1200
KM*140 500 1200
KME 352
146
766 766
1200
1220 Mounting CTRS
1220 Mounting CTRS 146
1368
2736
48.1
533.3
Heater
removal
F
2732
KME 353
2732
,
Heater
removal
F
1368
2736
48.1
533.3
146
566 566800
1220 Mounting CTRS
800
1220 Mounting CTRS
146
A
684
1818 546.5
Mounting CTRS
46 46
1011.9
1094.1
1074.1
60
83 509.5
44.4
Model A F
KM*175 500 1200
KM*232 650 1200
KM*282 650 1200
KM*352 850 1200
KM*353 850 1200
41
Product dimensions
LSR 121
1080 Overall length
750 Fixing centres
O21.0 4 holes
165165
570
580
1.1/2“ drain connection
1396 Over splash guard
1369 Over hangers
1319 Fixing centres
LSR 122
1755 Overall length
1425 Fixing centres
O21.0 4holes
165
165
570
580
1.1/2“ drain connection
Coil conns end
Coil conns end
1469 Over open drain pans
Removable
access
panels
both ends
Removable
access
panels
both ends
860.5
Required space
1295.5
Required space
LSR121-44
LSR121-64
LSR122-44
LSR122-64
LSR123-44
LSR123-64
LSR124-44
LSR124-64
LSR121-46
LSR121-66
LSR122-46
LSR122-66
LSR123-46
LSR123-66
LSR124-46
LSR124-66
117
130
180
200
237
266
301
341
114
125
175
192
230
256
292
326
151
180
232
277
314
382
405
496
141
165
216
254
291
348
374
446
Model
Cu/Al
weight
(kg)
Cu/Cu
weight
(kg)
LSR drawings and dimensions
LSR 123
Coil conns end
2430 Overall length
2100 Fixing centres
O21.0 4holes
165165
570
590
1.1/2“ drain connection
LSR 124
Coil conns end
3105 Overall length
1387.5 Fixing centres
O21.0 6 holes
165
165
570
600
1.1/2“ drain connection
1387.5 Fixing centres
Searle Air Cooler
1200
MNTG CRS
1150
740
300
50
Vertical discharge with
spigot attachment
option
Air operated damper &
crowl extension (defrost
units)
Heater
removal
1000 Min
1875
Mesh guard fitted
on all coils
740
2“ BSP (M)
Drain conn
1575
MNTG CRS
16mm
MTG hole
150
412
A
B
Power supply input
Rfrig. connections
Heater
removal
2000 Min
2“ BSP (M)
Drain conn
3150
740
1425
MNTG CRS
16mm
MTG hole
150
412
A
B
MNTG CRS
1425
Power supply input
Rfrig. connections
Heater
removal
2000 Min
2“ BSP (M)
Drain conn
4425
740
1425
MNTG CRS
16mm
MTG hole
150
412
A
B
MNTG CRS
1275
Power supply input
Rfrig. connections
MNTG CRS
1425
Heater
removal
2000 Min
2“ BSP (M)
Drain conn
5700
740
1425
MNTG CRS
16mm
MTG hole
150
412
A
B
MNTG CRS
1275
Power supply input
Rfrig. connections
MNTG CRS
1275
MNTG CRS
1425
Model Dim A Dim B
FM20
1016 1969
FM24 1219
2173
FM30 1524
2477
FM36 1829
2782
FM dimensions - Vertical
1080
Opening
40
40
40
40
40
530
opening
43
Product dimensions
.
Heater
removal
2000 Min
2“ BSP (M)
Drain conn
16mm
MTG hole
5700
1220
1425
MNTG CRS
150
412
A
B
MNTG CRS
1275
Power supply input
Rfrig. connections
MNTG CRS
1275
MNTG CRS
1425
.
Heater
removal
2000 Min
2“ BSP (M)
Drain conn
16mm
MTG hole
4425
1220
1425
MNTG CRS
150
412
A
B
MNTG CRS
1275
Power supply input
Rfrig. connections
MNTG CRS
1425
Heater
removal
2000 Min
3150
1220
150
412
A
B
MNTG CRS
1425
Power supply input
Rfrig. connections
MNTG CRS
1425
16mm
MTG hole
2“ BSP (M)
Drain conn
1575
1220
150
412
A
B
MNTG CRS
16mm
MTG hole
1875
Heater
removal
1000 Min
2“ BSP (M)
Drain conn
Model Dim A Dim B
FM20
1016 1468
FM24 1219
1671
FM30 1524
1976
FM36 1829
2281
Dim C
595
595
573
573
1150
1200
50
1150
1200
C
Air operated
damper &
guard (defrost
units)
Searle Air Cooler
SM drawings and dimensions
750
700
MTG CTRS
E
Ceiling MTD
Base MTD
B
844
Base MTD CTRS
Aerofoil
fan
459
max
151.5
Prop fan
6x O21 Mounting hole
1775
1355
MTG CTRS
Heater
removal
1000 min
210
2“ BSP (M)
drain conn
1355
Base MTD CTRS
15mm base
MTG hole
Heater
removal
2000 min
6x O21 Mounting hole
A
A
3050
1315
MTG CTRS
210
2“ BSP (M)
drain conn
1315
Base MTD CTRS
15mm base
MTG hole
1315
MTG CTRS
Refrig connection
Refrig connection
1315
Base MTD CTRS
Heater
removal
2000 min
21 Mounting hole
A
4325
1315
MTG CTRS
210
2“ BSP (M)
drain conn
1315
Base MTD CTRS
15mm base
MTG hole
1315
MTG CTRS
Refrig connection
1315
Base MTD CTRS
1315
Base MTD CTRS
1315
MTG CTRS
Heater
removal
2000 min
21 Mounting hole
A
5600
1315
MTG CTRS
210
2“ BSP (M)
drain conn
1275
Base MTD CTRS
15mm base
MTG hole
1275
MTG CTRS
Refrig connection
1315
Base MTD CTRS
1275
Base MTD CTRS
1275
MTG CTRS
1315
MTG CTRS
1315
Base MTD CTRS
SM 16
SM 20
SM 24
SM 30
800
1000
1200
1500
E Min
mm
45
Product dimensions
Note: Weights are maximums, based on 4mm fin spacing
Model
Case
height
in rows
No. of
fans
Fins
spacing
mm
Unit height
ceiling
mounted
Unit height
base
mounted
Unit weight
Cu/Al
(A) mm (B) mm
kg
161 - 4x
161 - 6x
161 - 8x
201 - 4x
201 - 6x
201 - 8x
162 - 4x
162 - 6x
162 - 8x
202 - 4x
202 - 6x
202 - 8x
242 - 4x
242 - 6x
242 - 8x
302 - 4x
302 - 6x
302 - 8x
163 - 4x
163 - 6x
163 - 8x
203 - 4x
203 - 6x
203 - 8x
243 - 4x
243 - 6x
243 - 8x
303 - 4x
303 - 6x
303 - 8x
244 - 4x
244 - 6x
244 - 8x
304 - 4x
304 - 6x
304 - 8x
16
20
16
20
24
30
16
20
24
30
24
30
1
1
2
2
2
2
3
3
3
3
4
4
4
6
8
4
6
8
4
6
8
4
6
8
4
6
8
4
6
8
4
6
8
4
6
8
4
6
8
4
6
8
4
6
8
4
6
8
970
1173
970
1173
1376
1681
992
1195
1398
1703
1398
1703
1141
1344
1141
1344
1547
1852
1141
1344
1547
1852
1547
1852
218
248
251
258
296
299
378
436
442
448
520
535
504
591
607
618
727
739
538
625
635
642
750
773
714
844
872
883
1045
1064
926
1099
1139
1148
1365
1389
Searle cooler Installation and maintenance, April 2016 272-000-296
www.kelvion.com
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