879482-j ecn6228 d wilson - climate wizard€¦ · pressure range required ... psychrometric chart,...

(English) (CW-H10, CW-H15)

CW-H Indirect Evaporative Cooler

APPLICATION GUIDE

i Indirect Evaporative Air Conditioner

CONTENTS

GENERAL 1SERVICES - Water, Electricity & Drain 2APPLICATIONS 3

Stand alone cooling 4Supplementary cooling 5Cold front cooling 6

DIMENSIONS 9ELECTRICAL WIRING DIAGRAM 10PSYCHROMETRIC CHART 12CONTROL SCHEMES 13

Local zone control 13Control from remote location 13Error signal 13Remote On-Off 14Water Management system 14LED indicator - Fault code diagnosis 17

GENERALClimate Wizard is an “Indirect Evaporative Air Cooler” that is capable of delivering cooled air, at temperaturesthat are very similar to those produced by refrigerated air conditioners. The Climate Wizard comprises of one (1) backward curved,high pressure, single inlet, centrifugal fan directly connected to an electronically commutated motor (ECM), a multi-patented heatexchanger core, a water reservoir and water distribution system including circulating centrifugal pump(s), automatic chlorinationdevice and an auto water management feature.

Climate Wizard remove moisture, but it add any moisture.

Climate Wizard is manufactured in two configurations - HORIZONTAL and VERTICAL. This Application Guide refers to theHORIZONTAL configuration only.The heat exchanger core may comprise of 2 or 3 sections.

The 2-section model is the CW-H10, with nominal cooling capacity of 10 kW*The 3-section model is the CW-H15, with nominal cooling capacity of 15 kW*.* [Cooling capacity is calculated at inlet conditions of 38°C dry-bulb, 10°C dew point and 27.4°C room temperatures, generally inaccordance with Australian Standard AS2913-2000. This capacity applies only when the Climate Wizard is being used in StandAlone Cooling applications. For Cold Front Cooling higher capacities apply.

Not all the inlet air is delivered into the building. Inside the Climate Wizard the air is divided into two streams. One stream is super-cooled (the ‘supply air’) and delivered into the building, and the second stream (the ‘reject air’) is used to intensify the wet-bulbdepression; it is supersaturated and discharged to atmosphere along with all the heat that has been removed from the dry fresh airstream.

External Static pressure affects the behaviour of the two air streams inside the machine. A means of compensating for the external

static pressure is provided on the Climate Wizard - see later information in this Guide.

The Climate Wizard is intended to be installed external to any building, but may also be installed indoors, for example in an air

conditioning plant room provided that fresh outside air can be supplied to the cooler and that the exhaust air is discharged to the

exterior of the building.

with no added moisture

cannot does not

APPLICATION GUIDEIndirect Evaporative Air Conditioner

INLET(AMBIENT)

AIR

EXHAUSTAIR (WARM

& MOIST)

SUPPLYAIR (COOL

& DRY)

SEELEY INTERNATIONAL – APPLICATION GUIDE 1

GENERAL ….cont’d

SERVICES - water, electricity & drain

USA Installations

Being a water based machine Climate Wizard incorporates features that recognise the necessity of managing water quality and ofcomplying with Codes and Regulations for health protection. Inside the cooler there is an electrolytic Chlorinator that generatesChlorine gas in the water reservoir and behaves as a permanent biocide to annul any bacterial activity in the water.A water management system measures the salinity of the water and drains a percentage of the water from the reservoir whileadmitting fresh water to dilute the salt concentration in the reservoir. A 3-probe detector is located in the reservoir. This feature canbe field set to either measure the salinity via the probes, or to drain water out and admit fresh water after the level has reached thetop probe eight (8) times. [This is a measure of how much water has been evaporated in the machine.]In Salinity measuring mode it maximises water usage before purging, thereby eliminating water wastage.

Climate Wizard requires a permanent water supply to be connected. 1/2 inch BSP male connection point provided on the cooler (seediagram). Pressure range required - 100 kPa - 800kPa at flow rate of 20 L/min.

Climate Wizard requires 3-Phase Neutral and Earth electrical power to be supplied. Minimum 10 amp, 4-wire+ ground conductorssupplied from independent circuit breaker. If required, main isolation switch to be furnished by contractor adjacent to the cooler. Mainpower terminals provided inside electrical cabinet with glands provided for cable entry.

A built-in Drain Valve is controlled by the water management system. The valve has 40mm BSP male connection and is providedwith a reducing fitting for connection if desired to a flexible hose for running water to waste. See diagram for location. Recommendedminimum drain hose diameter 20mm.

All Installations (except USA)

internal

Climate Wizard requires 3-Phase (No Neutral) and Earth electrical power to be supplied. Minimum 10 amp, 3-wire+ groundconductors supplied from independent circuit breaker. If required, main isolation switch to be furnished by contractor adjacent to thecooler. Main power terminals provided inside electrical cabinet with glands provided for cable entry.

A built-in Drain Valve is controlled by the water management system. The valve has 1.5" (40mm) BSP male connection and isprovided with a reducing fitting for connection if desired to a flexible hose for running water to waste. See diagram for location.Recommended minimum drain hose diameter 3/4" (20mm).internal

TOP VIEW

145

130

DRAIN IN

FLOOR OF TANK

319

ACCESS COVER FOR

DRAIN CONNECTION

WATER CONNECTION

- 1/2” BSP NIPPLE

130

AIR

INLET

END VIEW

2 Indirect Evaporative Air Conditioner

Climate Wizard is designed to be used in 3 different types of applications:STAND ALONE COOLING - in cases where the Climate Wizard is the primary source of Air Conditioning for the building.

SUPPLEMENTARY COOLING - in cases where the Climate Wizard is used to augment the capacity of the existing airconditioning system, or to extend its reach into the building, or to greatly reduce the energy consumption of the AirConditioning plant.

COLD FRONT COOLING - in cases where the Climate Wizard is used to pre-cool the fresh air supply to new or existingrefrigerated air conditioning plants in order to prolong the life of the plants, to save significant energy, and to greatly reducedemand on existing infrastructure which becomes over-stressed in heat-wave conditions.

In each application type, remarkable energy savings can be achieved compared with conventional Refrigerated Air Conditioning.THE HOTTER THE CLIMATE THE MORE SAVINGS WILL BE MADE.

See following pages for details of each application type.

!

!

!

CW

STAND ALONE COOLING

CW

COLD FRONT COOLING

AC AC

CW

SUPPLEMENTARY COOLING

AC

CW

CW


STAND ALONE COOLING:

Sizing:

Climate Wizard can be used to supply the entire air conditioning demand of a building.

The Climate Wizard is intended to be installed external to any building, but may also be installed indoors, for example in an airconditioning plant room provided that fresh outside air can be supplied to the cooler and that the exhaust air is discharged directly tothe exterior of the building.

The supply air temperature delivered by the Climate Wizard, and its airflow, is similar to the temperature and airflow of a refrigeratedAir Conditioner. Therefore the air distribution design should follow similar parameters of design and installation. Essentially thatmeans similar duct sizes, similar outlet design and attention given to the avoidance of cold air drafts. The use of Zones is acceptableprovided that used air can exit the building satisfactorily.

IT IS ESSENTIAL THAT THE PLANT BE SO ARRANGED THAT THE CLIMATE WIZARD EXHAUST AIR CANNOT BE RE-CIRCULATED INTO THE AIR INLET OF THE COOLER.

It should be understood that the Climate Wizard performance is similar to a refrigerated Air Conditioner in regard to the supply airtemperature and the ‘no added moisture’ feature. Since refrigerated Air Conditioners are sized on the basis of a heatload calculation,Climate Wizard must be treated in the same way. Contractors should therefore continue to use their regular method for determiningthe heatload of a building and apply the Climate Wizard to the ‘sensible’ component of that heatload. The ‘Air Change Rate’ methodthat is often used for Direct Evaporative Air Coolers is NOT to be used.However, the rated capacity of the Climate Wizard will vary according to the local climate conditions, and the indoor temperaturesetting. Thus a second calculation must be made before the final sizing of the cooler can be made.

For the CW-H10: Cooling capacity = K1 x T watts [K1 = specific heat x density x airflow = 1.23 x 800 L/sec = 984)rT = (Tset room - Tsupply)] [Tsupply is found in Psychrometric Chart, Page 10.]

For the CW-H15: Cooling capacity = K2 x T watts [K2 = specific heat x density x airflow = 1.23 x 1100 L/sec = 1353)rT = (Tset room - Tsupply)] [Tsupply is found in ]

r

rPsychrometric Chart, Page 10.


SUPPLEMENTARY COOLING:

Sizing:

Climate Wizard can be used to boost or supplement the existing air conditioning capacity of a building. In this application the ClimateWizard will be installed in a similar way to the Stand Alone application, but will be sized to provide added cooling capacity to thebuilding. It can also be used to supply all the fresh air requirement of a building and in this case it will be sized according to the freshair quantity requirement.The Climate Wizard is intended to be installed external to any building, but may also be installed indoors, for example in an airconditioning plant room provided that fresh outside air can be supplied to the cooler and that the exhaust air is discharged directly tothe exterior of the building.The supply air temperature delivered by the Climate Wizard, and its airflow, is similar to the temperature and airflow of a refrigeratedAir Conditioner. Therefore the air distribution design should follow similar parameters of design and installation. Essentially thatmeans similar duct sizes, similar outlet design and attention given to the avoidance of cold air drafts. The use of Zones is acceptableprovided that used air can exit the building satisfactorily.

IT IS ESSENTIAL THAT THE PLANT BE SO ARRANGED THAT THE CLIMATE WIZARD EXHAUST AIR CANNOT BERECIRCULATED INTO THE AIR INLET OF THE COOLER.

The decision to install supplementary cooling equipment will arise from a number of causes:Existing plant is overloadedExisting plant is nearing end of lifeEnergy consumption of building must be reduced but ‘Cold Front Cooling’ (see later heading) option is either not possible or not

economicalBuilding has been extended but existing plant is at full capacity

In addressing points 1,2,3 above, since the Climate Wizard delivers 100% fresh air and with no added moisture, the fresh air intakeof the existing Air Conditioning plant should be closed in order for the Climate Wizard to provide all the fresh air required for thebuilding. This will have the immediate effect of reducing the load on the existing plant and saving energy. The decision about thequantity of Climate Wizard coolers depends entirely on matching the Climate Wizard airflow with the quantity of fresh air that wasbeing delivered by the existing plant. The amount of energy that was being consumed by the existing plant will be greatly decreasedbecause the Climate Wizard can cool the same quantity of fresh air for much less consumed energy. See table under

. The maximum supply airflow of the 2 Climate Wizard models is:

CW-H10 approx. 800 L/sec at 200 PaCW-H15 approx. 1100 L/sec at 200 Pa

!

!

!

!

Cold FrontCooling

Addressing point 4 above, the foregoing procedure may be adequate to cope with the increased load, but if not, additional ClimateWizard coolers may be installed. In this case the cooling capacity of the Climate Wizard should be calculated in the same way as forStand Alone cooling, using local climate data and the desired indoor room temperature required by the Owners.

For the CW-H10: Cooling capacity = K1 x rT watts [K1 = specific heat x density x airflow = 1.23 x 800 L/sec = 984)rT = (Tset room - Tsupply)] [Tsupply is found in Psychrometric Chart, Page 10.]

For the CW-H15: Cooling capacity = K2 x rT watts [K2 = specific heat x density x airflow = 1.23 x 1100 L/sec = 1353)rT = (Tset room - Tsupply)] [Tsupply is found in Psychrometric Chart, Page 10.]


COLD FRONT COOLING:Cold Front Cooling describes the case in which Climate Wizard is used to pre-cool the fresh air component of a refrigerated airconditioning plant. In most countries and jurisdictions around the world a mandatory quantity of fresh air is required to be delivered into thebuilding as a percentage of the total air quantity of the air conditioning system. This quantity is often up to 25% of the total air requirementof the plant. Climate Wizard will completely cool this air at very low cost.

It is therefore extremely cost effective to use Climate Wizard to perform this function and thereby reduce the load on the refrigeration plant,and its wear and tear while greatly reducing the cost of running the plant.

The Climate Wizard is intended to be installed external to any building, but may also be installed indoors, for example in an air conditioningplant room provided that fresh outside air can be supplied to the cooler and that the exhaust air is discharged directly to the exterior of thebuilding.

IT IS ESSENTIALTHAT THE PLANT BE SOARRANGED THAT THE CLIMATE WIZARD EXHAUSTAIR CANNOT BE RECIRCULATEDINTO THEAIR INLET OF THE COOLER.

Advice to Designers:1. Avoid coil entering air temperatures falling below 21°C as this may prevent 100% evaporation of the liquid in the

evaporator coil, leading to serious compressor damage. There is no provision in the Climate Wizard to protectagainst this occurrence.

2. Avoid the temperature of air mixtures exceeding 31°C entering the evaporator coil as this may cause compressorfailure on the high pressure cut-out. There is no provision in the Climate Wizard to protect against this occurrence.

3. Under certain conditions of low moisture content, pre-cooled air from the Climate Wizard may be delivered into theAHU downstream of the evaporator coil.

Examples of typical designs:

1. Climate Wizard installed on roof and ducted into Air Conditioning plant room below

Alternative sitefor CW

Fresh airintake

Return air

A-C UNIT

Fresh air louvres to beclosed when Climate Wizard

installed on roof

Supply air tobuilding

CW

CW


COLD FRONT COOLING (cont’d):

Examples of typical designs (cont’d):

! Climate Wizard installed on roof and ducted directly into fresh air intake ofAir Conditioner in plant room below.

Two examples of Climate Wizard Cold Front Cooling installations inAustralia

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aa

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Alternative sitefor CW

Fresh airintake

Barometricdamper

Return air

A-C UNIT

Supply air tobuilding

CW

CW


COLD FRONT COOLING (cont’d):

The Barometric Damper may be controlled by natural pressure variations or, if motorised, by the control system, depending onwhether the Climate Wizard is required to function or not.

Cold Front Cooling means pre-cooling warm (hot) fresh air that is required by a refrigerated Air-Conditioning plant. SinceClimate Wizard cools fresh air down to almost the dewpoint and does not add any moisture, it is the ideal product to pre-cool thefresh air. This low-cost pre-cooled air creates immediate energy savings for the building and it reduces the load on the refrigerationequipment, thereby extending the life of the plant and saving capital outlay. It also enables load to be removed from the existingover-stressed electrical power infrastructure, and especially so in heat-wave conditions.

First ascertain the quantity of fresh air of which the refrigerated Air Conditioning plant is capable. Match this quantity to the quantityof air of the Climate Wizard will deliver. The maximum supply airflow of the 2 Climate Wizard models is:

CW-H10 approx. 800 L/sec at 200 PaCW-H15 approx. 1100 L/sec at 200 Pa

For customers who need to know the energy saving, the provides the Cooling Effect in kW of eachmodel at various ambient conditions.

Further reductions in energy consumption can be achieved when a portion of the return air is ducted via the Climate Wizard.

Maximising the use of return air can also open up further very viable possibilities for Climate Wizard in localities with extremely highdewpoint temperatures. These are special cases and lie outside the scope of this Guide.

Sizing:

Psychrometric Chart, (Page 12)

WORKED EXAMPLES:

Commercial building inAdelaide,Australia, planning to use Lennox FGM200 RooftopA/C units.Unit specs: 197 kW cooling capacity, input power 66 kW, 35000 cmh airflow. COP = 197 / 66 = 3.0

Total fresh air 25% of 35000 = 8750 cmh = 2430 L/sec. Use 2 x CW-H15Climate 38°C Tdb and 10°C Tdew. CW-H15 Cooling Effect = 30.5 kW; input power = 2 x 1.8 kW,A/C unit load becomes 197 - (2 x 30.5) = 136 kW; hence input power at 3.0 COP = 136/3 = 45 kWTotal system input power = 45 + (2 x 1.8) = 48.6 kWOriginal system power = 66 kW

Supermarket in very hot city in Spain, planning to use Lennox FHK190 RooftopA/C units.Unit specs: 208 kW cooling capacity, input power 75 kW, 33000 cmh airflow COP 208/75 = 2.8

Total fresh air 10% of 33000 = 3300 cmh = 917 L/sec Use CW-H15.Climate 40°C Tdb, and 12°C Tdew. CW-H15 Cooling Effect = 31.6 kW ; input power 1.8kWA/C unit load becomes 208 - 31.6 = 176.4 kW; hence input power at 2.8 COP = 176.4/2.8 = 63 kWTotal system input power = 63 + 1.8 = 64.8 kWOriginal system power = 75 kW

Commercial Offices in Lyon, France, planning to use Lennox FGM200 RooftopA/C units.Unit specs: 197 kW cooling capacity, input power 66 kW, 35000 cmh airflow. COP = 197 / 66 = 3.0

Total fresh air 20% of 35000 = 7000 cmh = 1944 L/sec. Use 2 x CW-H15Climate 34°C Tdb and 11.7°C Tdew. CW-H15 Cooling Effect = 24.5 kW; input power = 2 x 1.8 kWA/C unit load becomes 197 - (2 x 24.5) = 148 kW; hence input power at 3.0 COP = 148/3 = 49.3 kWTotal system input power = 49.3 + (2 x 1.8) = 52.9 kWOriginal system power = 66 kW

Example 1:

Example 2:

Example 3:

Assume 25% fresh air.

Saving = 17.4 kW or about 26%.






DIMENSIONS & VIEWS

ISOMETRIC

1610mm(63.4”)

TOP

1825mm (71.8”)CW-H15

1230mm (48.4”)CW-H10

SIDE 1985mm (78.2”)(Control Box Handle)

2435mm (95.9”)(Air Filter)

Mounting Plinth1300mm (51.2”)

667mm(26.2”)

REAR

RAIN HOOD FOREXHAUST TRANSITION

Mounting Plinth1206mm (47.5”) (CW-H10)1800mm (70.9”) (CW-H15)

Rain hood (not supplied)(Min. throat radius = 75mm,Max. pressure drop = 20Pa)

Relocate grille torain hood if fitted


ELECTRICAL WIRING DIAGRAM FOR CLIMATE WIZARD

Australia & Europe

C1 MOTOR CONTACTOR COILC2 FUSE T12.5AC3 MAIN PCB POWER INC4 PUMP LINKC5 DRAIN VALVEC6 SALINITY PROBEC7 MOTOR CONTROL SIGNALC8 WALL CONTROLC9 WATER INLET SOLENOIDC10 CHLORINATOR LINKC11 INTERFACE BOARD LINKC12 NOT USEDC13 CHLORINATOR x 2C14 BMS COOL/VENT INPUTC15 BMS ERROR SIGNAL OUTPUTC16 BMS REMOTE ON/OFF INPUTC17 BMS FAN SPEED INPUT 0-10Vdc

These 4 itemsare 2-pole plugreceptacles for

I/O signals.

859651-C

MAIN PCB

C1

C2

C3 C4 C5

C6

C7

C8 C9 C10

C11C11

C13

C13

C10

C12

C12

C4

C17

C16

C15

C14

3 PHASEFILTER

BM

S C

ON

TR

OL

S

FA

N C

ON

TAC

TO

R

INTERFACE PCB

T1 T2 T3 T4 T5 T6

L1 L2 L3 N E

A1531

2 4 6 A2

U2

V2

W2

N2

U1

V1

W1 E

gn/y

gn/y

CHLORINATOR X 2

MAIN SUPPLY

N1

FAN

380-415V / 3~ / 50Hz SUPPLY

PUMP JUNCTION BOX

Dimensions CW-H10 CW-H15

Width: 1230mm (48.4”) 1825mm (71.8”)

Height * 1610mm (63.4” ) 1610mm (63.4” )

Length (No Air Filter) 1985mm (78.2”) 1985mm (78.2”)

Width 1206mm (47.5”) 1800mm (70.9”)

Length 1300mm (51.2”) 1300mm (51.2”)

Inlet Duct 500mm (19.7”)(W) x 500mm (19.7”)(H) 500mm (19.7”)(W) x 500mm (19.7”)(H)

Outlet Duct 500mm (19.7”)(W) x 500mm (19.7”)(H) 500mm (19.7”)(W) x 500mm (19.7”)(H)

Center line of outlet duct above base

667mm (26.3”) 667mm (26.3”)

*

Overall

Mounting Plinth

Length (With Air Filter) 2435mm (95.9”) 2435mm (95.9”)

Overall height can vary as shown due to manufacturing and material tolerances.

+20-0

+0.75”- 0

+0.75”- 0

+20-0

Indirect Evaporative Air Conditioner10

DIMENSIONS & VIEWS (cont’d)

USA

861371-A


MAIN PCB

230VacINPUT

12VdcOUTPUT

DENOTES CLASS2 CIRCUIT

CLASS 2POWER SUPPLY

MPS-30-12

C1

C2

C3 C4 C5

C6

C7

C8 C9 C10

C11C11

C13

C13

C10

C12

C12

C4

C17

C16

C15

C14

BM

S C

ON

TR

OL

S

FA

N C

ON

TAC

TO

R

INTERFACE PCB

T1 T2 T3 T4 T5 T6 T7

EL3L2L1

A1531

2 4 6 A2

gn/ygn/y

CHLORINATOR X 2

PUMP JUNCTION BOX

MAIN SUPPLY

220-240V / 3~ / 60Hz SUPPLY

FAN


ELECTRICAL WIRING DIAGRAM FOR CLIMATE WIZARD (cont’d)


860312-B

MAIN PCB

230VacINPUT

12VdcOUTPUT

DENOTES CLASS2 CIRCUIT

CLASS 2POWER SUPPLY

MPS-30-12

C1

C2

C3 C4 C5

C6

C7

C8 C9 C10

C11C11

C13

C13

C10

C12

C12

C4

C17

C16

C15

C14

100VA TRANSFORMER380-480V TO 230V

BM

S C

ON

TR

OL

S

FA

N C

ON

TAC

TO

R

INTERFACE PCB

T1 T2 T3 T4 T5 T6 T7

EL3L2L1

A1531

2 4 6 A2

gn/ygn/y

CHLORINATOR X 2

PUMP JUNCTION BOX

MAIN SUPPLY

440-480V / 3~ / 60Hz SUPPLY

FAN

38

PRIMARY

0V

0V

115V

115V

373635

SET FOR 480V

34333231

380V 31 - 38400V 32 - 38415V 31 - 37440V 32 - 37460V 32 - 36480V 33 - 36

PHASE TO PHASEPRIMARY VOLTAGE JUMPER BETWEEN

TRANSFORMER SETTING TABLE

CONTROL SCHEMES:

Local zone control

Control from remote location

Climate Wizard coolers are supplied from the factory with one (1) Wall Control and a 20m control cable. This makes it possible forthe Cooler to be controlled independently and automatically from the zone to which it is delivering cool air.No additional equipment is required. The Wall Control incorporates a thermostat that regulates fan speed to maintain indoortemperature within 0.5 C of the set temperature.

Climate Wizard Coolers are also supplied with input/output connectors to enable the machine to be controlled from an externallocation, including a BMS system

Whatever control option is being used, the inbuilt Climate Wizard water management and fault monitoring features are alwaysfunctional.

The Climate Wizard control scheme incorporates some Parameters that can be altered to other settings if the default settings are notsuitable.

Individual coolers can be controlled completely from within their cooling zone using the Wall Control-thermostat supplied. A 20mconnecting cable, plugged each end is supplied. 40m cables are also available on request. - P/No. 833897Maximum permissible cable length between the Wall Control and the cooler is 40m.

No interconnection between coolers to achieve ‘Group control’ is possible.

Four plug receptacles are provided in theelectrical control enclosure as shown.These are solely for the control of thecooler from a remote location.

These commands may emanate from a purpose built device such as a panel containing switches for Cooler ON-OFF, Pump ON-OFF, a potentiometer for the fan speed control, and a light to display a cooler fault condition. The panel will include its own powersupply to create signals compatible with the Climate Wizard specifications.

Or they may emanate from a BMS (Building Management System). Depending on the type of BMS it may be necessary to providean off-the-shelf Interface Module between the BMS serial bus and the Climate Wizard plug receptacles.

+0

Error SignalThe error signal comprises of a single pole voltage free contact (solid state electronic, not mechanical relay) that closes under faultconditions. The contact is rated at 500mA at 32 volts DC max.In order to use this signal an external voltage must be supplied that will then drive a relay coil or indicator lamp that does not exceedthe above ratings.

R

ERROR SIGNAL

MAX 500mA

MAX 32V DC

+ve

-ve


Remote ON-OFF

Group control from BMS

Water management system

Remote ON-OFF function can be achieved regardless of whether the Climate Wizard is controlled from an external source or not. Ifat any time that the cooler is running under its local Wall Control, and a voltage (4-32 VDC) is switched on to the ‘Remote ON / OFF’receptacle the cooler will shut down until the voltage disappears. This condition of being shut down in this way will be evidenced onthe Wall Control by the words ‘Preparing to start’ flashing on the screen.

Any number of Climate Wizard coolers can be controlled as a group through a BMS system.

Parameter A3 - see below

Default setting - Pre-wet cycle enabled

Pre-wet duration 3 minutes

Pre-wet ALWAYS occurs after the power is resumed

Otherwise pre-wet occurs if there has been a tank drain since the Pump last ran

During pre-wet cycle the fan runs on low speed

Wall Control does NOT display ‘Preparing to start’ because the fan is already running

After Pre-wet, fan will resume running at Wall Control setting

When COOL selected, fan and pump will start 30 seconds after water level has reached the bottom probe

After Pre-wet, the pump then cycles continuously: ON for 1 minute

OFF for 8 minutes

Incorporates soft switching to avoid water-hammer

Opens 9 seconds after COOL mode starts (in order to give Drain Valve time to shut)

Remains open until water level reaches top probe

Opens to water entry if water level is below bottom probe

Will also open at anytime that Salinity Control demands fresh water

Pre-wet cycle

only

Pump control

Inlet solenoid valve control

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!


Water management system (cont’d)

Tank (reservoir) drain valve control

Salinity Control

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!



When power switched on Drain Valve opens

Drain Valve remains open until COOL mode selected

When COOL mode selected Drain valve shuts

Drain Valve remains shut, but will open when either:

Auto-drain activated according to time lapse since COOL mode was last switched OFF - set under Parameter A6. Default

time lapse 3 days. Valve remains open until next COOL mode activated.

OR

Salinity Control demands the tank (reservoir) to be drained. Valve remains open until water level falls below bottom probe,

then it immediately shuts again.

OR

Count of number of times the tank is filled from the bottom to the top probe reaches 8 times. Then valve opens until water

level falls below bottom probe, then it immediately shuts again.



Two modes of Salinity control:

Water conductivity sensing

Water usage sensing

Water Conductivity sensing:

Probes measure water conductivity for 10 seconds within every minute

When conductivity exceeds the upper set point the water inlet solenoid valve is opened to allow fresh water entry.

Monitoring of conductivity is continuous during this cycle.

Inlet solenoid valve remains open until water level reaches top probe, then it closes

If water reaches top probe, but conductivity is still too high, a drain cycle starts

Drain valve opens until water level falls below bottom probe, then valve closes immediately, and inlet solenoid valve opens

to refill the reservoir.

Contains feature that switches to High Sensitivity status when water is very clean (such as rain water) and will sense

conductivity down to 9 uS (about 4ppm)

Water Usage sensing:

Number of times that tank is filled from bottom probe to top probe is counted. When this count reaches 8, a drain cycle is

initiated.

Drain valve opens until water level falls below bottom probe, then valve closes immediately, and inlet solenoid valve opens

to refill the reservoir.

Pumps enabled to run at any time during the salinity drain cycle.


Water management system (cont’d)

Chlorinator Control!

!

!

!

The Chlorinator is a pair of specially treated metallic parallel plates. When submerged in water electrical current flowsbetween them, generating Chlorine which cleans the water.There are two (2) sets of Chlorinator plates in the Climate Wizard.Chlorine is known to kill bacteria in water supplies and the Climate Wizard Chlorination system is designed to minimisebacteria levels within the Cooler.Chlorinators active at all times that the Cooler is in COOL mode, AND the water level is above the bottom probe, AND thepumps are not running (8 minutes in every 9 minutes), AND the salinity control is not sensing (50 seconds in every 60seconds).

PARAMETERS

No. DESCRIPTION VALUE DEFAULTA1 Water salinity control method:

A2A3 Pre-wet control:

A4 Wall Control back light:

A5 Conductivity set point:

A6 Tank (reservoir) drain delay:

A7 Auto re-start after Power failure:

A8 Temperature units:

- Conductivity measuring 00 00- Counts low to high probe fills 01Not applicable to Climate Wizard

- No pre-wet 00- Pre-wet 01 01

- Backlight ‘OFF’ 00- Backlight ‘ON’ 01 01

- Normal conductivity - 4275 µS/cm 00 00- Low conductivity - 2305 µS/cm 01

- Instant drain at COOL off 00- Drain 3 hours after COOL off 01- Drain 12 hours after COOL off 02- Drain 3 days after COOL off 03 03

- Requires manual re-start when power OFF 00 00- Auto restart 01

- Display °C 00 00- Display °F 01


FAULT CODE #1

1 Flash then 2 seconds OFF

TRI-COLOUR LED: This LED indicates the status of the cooler and indicates Fault Codes (if applicable)

RED COLOURED LED: This LED indicates the status of the conductivity measurement circuit and the status of the Salinity ControlMethod

COMMUNICATION FAILURE

Salinity Control Method = Water Manager,

Salinity Control Method = Water Manager,

NORMAL OPERATION NORMAL OPERATION

Wall Control: No valid message for 10 seconds. System shuts down.

Measured conductivity is below the conductivity set point

1 Red Flash then 2seconds OFF

FAULT CODE #2

2 Flashes then 2 secondsOFF

FAILURE TO DETECT WATER ATLOW PROBE

Salinity Control Method = Standard (8 counts of re-fill to highprobe)

Water has 20 minutes to reach the LOW probe when the solenoid valveis on. If it fails to do so the Fan motor and pump shut down and thisFault is activated.

Measured conductivity is above the conductivity set point

2 Red Flashes then 2seconds OFF

FAULT CODE #3

3 Flashes then 2 secondsOFF

FAILURE TO DETECT WATER ATHIGH PROBE

Once water has reached the LOW probe, water has 20 Minutes toreach the HIGH probe. If it fails to do so the Fan motor and pump shutdown and this Fault is activated.


FAULT CODE #4

Continuously ON

FAILURE TO CLEAR LOW PROBESDURING DRAIN

When the drain has opened water has 20 minutes to clear the LOWprobe.

This will occur after a timed Drain delay when thePump has been switched off, or during a Salinity Drain

If it fails to do so the Fan motor and pump shut down and thisFault is activated.

Lower probes are open circuit or conductivity is less than 9uS/cm.


FAULT CODE #5WATER DETECTED AT HIGH PROBEBUT NOT AT LOW

Low probe is dirty or faulty. If it fails to detect, the Fan motor and pumpshut down and this Fault is activated.

FAULT CODE #6FAILURE TO CLEAR HIGH PROBE If after 4 hours of pump running water has not cleared the HIGH probe(i.e. pumps not working), this Fault is activated.



FAULT CODE #7MOTOR ERROR If an Error has occurred in the motor drive circuit.7 Red Flashes then 2seconds OFF

FAULT CODE #8WARM START If the mains input voltage is under 90Vac but not low enough to resetthe PCB, the system switches off the Fan and Pump and indicates thisFault. If the Voltage returns to a usable voltage level without resettingthe PCB a Fault Code #8 is recorded in the system log.

FAULT CODE 'A’CHLORINATOR FAULT. The Chlorinator is Short Circuit, Open Circuit or running in very highsalinity water > 13,000uS. Any of these faults will initiate Fault Code#A. “SERVICE” will be displayed on the Wall Control and Fault Code#A will be indicated on interrogation. The first Fault Code #A will triggera Salinity Drain cycle. If after the Salinity Drain cycle another FaultCode #A occurs, within 15 minutes, the cooler will be disabled untilremedial action is taken.

FAULT CODE 'B’SMART CARD ERROR

10 Red Flashes then2 seconds OFF

11 Red Flashes then2 seconds OFF

2 Green flash then 2seconds OFF

The main program loop is running, no Fault present

The Smart Card is missing or corrupted. Cooler performance isrestricted to minimum Fan Speed.

LED Indicator - Operating and Fault Code DiagnosisThe Red LED (left-hand LED) is used to indicate the condition of water salinity and configuration of the water management system.Tri-Colour LED (right-hand LED) is used as an operational and fault indicator. NOTE: Tri-colour LED double flashing Green (every 2seconds) = Normal Operation


879482-J seeleyinternational.com 1501

It is the policy of Seeley International to introduce continual product improvement.Accordingly, specifications are subject to change without notice.

Warranty ServiceAustralia

USA1-300-650-644

Toll Free: 1-800-926-6824All other regions: Please contact your local Climate Wizard distributor.

879482-j ecn6228 d wilson - climate wizard€¦ · pressure range required ... psychrometric chart,...

Documents