Rev. 5-4-18

TECHNICIAN INFORMATION FOR MODEL AQVwww.Aqua-Chill.com

4700 Lang AvenueMcClellan, CA 95652 (916) 646-2700

www.Aqua-Chill.com4700 Lang Avenue • McClellan, CA 95652 • (916) 646-2700 • Contractor License 162634

AquaChill is a water-cooled, evaporative air conditioner that provides homeowners with superior energy efficiency as compared to a conventional air-cooled air conditioner. Due to it’s increased Energy Efficiency Rating, this product will significantly reduce homeowner’s energy usage by 25% – 40%, while greatly reducing peak power demands for utilities.

Currently rated as one of the most efficient residential air conditioners on the market, the AquaChill uses much less energy than a traditional air-cooled air conditioner in hot climates. The AquaChill uses ozone-friendly R-410A refrigerant and operates at a lower head pressure than a traditional air-cooled air conditioner, resulting in quieter operation, greater energy savings and longer compressor life.

We are passionate about our customers and assisting in the environmental concerns of today. AquaChill is an important step towards our goal of complete customer satisfaction and doing our part to conserve energy.

Sincerely,

Rick WyliePresident

Runs less. Cools more

Table of Contents

General information about AquaChill.............................................................. 1

Placement and A/C pad ................................................................................... 2

Refrigerant piping and evacuation .................................................................. 3

Water piping and water adjustments .............................................................. 4

Purge discharge ............................................................................................... 5

Electrical wiring and circuits ............................................................................ 5

System start up ................................................................................................ 6

Refrigerant charge ........................................................................................... 7

Water treatment ............................................................................................. 7

Water quality purge control ............................................................................ 7

Trouble shooting .............................................................................................. 9

AquaChill Parts Diagram .................................................................................. 10

Villara Building Systems works continually to improve its products. As a result, the design and specifications of this AquaChill unit may vary slightly. Please contact Villara’s Manufacturing Department at 916-646-2700 for specific information on current product design and specifications. Statements and other information contained herein are not express warranties.

GENERAL INFORMATIONFeatures• Ultra-efficient evaporative condenser• High efficient Compressors • 14.5 to 16 EER• 2.5 to 4.5 ton cooling capacity• Unparalleled design, especially for dry and hot ambient climates• Standard rating at 95db/75wb for outdoor and 80db/67wb for indoor conditions• Compatible with all conventional air conditioning systems• Great capacity from 75°-120°F• Quiet operation• Unique drip-drain purge system

Design/Application• Outdoor condensing unit for ground or rooftop application• Designed as a split system• Provides more cooling capacity than an air-cooled air conditioning unit

Cabinet Construction• Custom Polyethylene cabinet with UV resistance• Sound absorbing construction materials• Easy access door for servicing

Water RequirementsUnit requires a water shut-off valve and 1/4” water line. Do not use soft water for supply water line.

Safety Considerations• WARNING or DANGER denotes safety alerts regarding hazards that will result in severe injury or death.• CAUTION denotes alerts to unsafe practices that can result in minor personal injury or equipment damage or required procedures for proper equipment performance.• NOTE denotes possible injury, equipment damaging practices, or tips for better and more efficient installation.

AQUACHILL COMPONANTS

Water In

Sump Drain Cap

Condenser fan

Compressor R-410a

Electrical controls: 230 Volts, 24 Volts

Condenser coil

Water level float

Water pump

Side Panel Front

Drain Plug Elbow

Electrical In

Refrigerant Lines

Purge

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AQUACHILL PARTS DIAGRAM

Figure 9.

Figure 10.

PARTS BREAKDOWN - FRONT VIEW

1) ELECTRICAL CONTROL BOX2) CONTACTOR3) TIME DELAY4) CAPACITOR, COMPRESSOR + FAN5) COMPRESSOR, SIZE PER MODEL 6) VALVE, CARRIER, LIQUID LINE7) VALVE, CARRIER, SUCTION LINE8) BALL VALVE FLOAT ASSEMBLY9) NU-CALGON PURGE VAP WATER TREATMENT10) DRIP DRAIN PURGE ASSEMBLY11) LOW LEVEL PRESSURE SWITCH12) HIGH LEVEL PRESSURE SWITCH13) 1/4” B10-736, T-36 VALVE14) VINYL PUMP BASKET15) WIRE HARNESS16) ANODE ASSEMBLY INC WIRE17) WATER CIRCULATION PUMP

PARTS DESCRIPTIONITEM

PARTS BREAKDOWN - TOP VIEW

1) TOP FAN GRILL2) GOODMAN FAN MOTOR - 0131M00060S2) GOODMAN FAN MOTOR - 0121M00061S3) FAN PROP 2.5 - REVCOR T2203-203) FAN PROP 3.5 - REVCOR T2203-233) FAN PROP 4.5 - REVCOR T2204-234) LID OF MAIN CASING5) UPPER DRIFT ELIMINATOR6) 15 HEAD SPRAY BAR ASSEMBLY7) CONDENSER COIL ASSEMBLY 3 T (8 ROW)7) CONDENSER COIL ASSEMBLY 4 T (10 ROW)7) CONDENSER COIL ASSEMBLY 5 T (10 ROW)8) TOP OF MAIN BODY OF CASING

PARTS DESCRIPTIONITEM

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PLACEMENT AND A/C PADUnit Clearance RequirementsFresh air is required to enter the unit cabinet via the inlet louvers on the left, right and back sides. Humidified air is discharged from the top of the cabinet. It is important that the location you choose to mount the unit allows for air circulation. Service access to the electric box must be allowed. All standard service is done through the front service panel.

The unit must be mounted on a solid, level foundation. A concrete or synthetic pad at ground level is preferred, but suitable galvanized steel framing can also be constructed for rooftop installations. Refer to the section “Refrigerant Line Connections” for details on line configuration. (See clearances in Fig. 1 and Fig. 2)

Setting The A/C PadThe unit is commonly pad mount. Level mounting pad 36” x 36” is adequate to set the unit base on. Some local codes demand hold down anchoring, although we recommend they be avoided. Refer to local codes as required. Set unit on a firm, level location with adequate drainage. The condensing unit must be level to ensure proper water distribution and water level control.

Note: A drain plug is located in the cabinet for draining and cleaning of the base pan. In the winter the water is turned off and drain plug is removed to allow rain water to drain out of the base pan.

48” minimum clearance above the unit must be allowed to exhaust the humid discharge air. Building overhangs, trees and other obstacles must be allowed for (Figure. 1).

Be sure water runoff from nearby structures will not pour directly into the fan discharge opening. Unit should also be protected from excessive debris such as falling leaves that may cover or clog the fan or drift eliminator.

Be sure proper access is provided so that connections can be easily completed and inspected. An electrical disconnect is required to be mounted near the unit. The disconnect must be provided by the installer. The best location for the disconnect box is on the wall to the left side of the unit.

Figure 2. Placement Dimension Requirements – Top View. Example with front panel facing away from wall.

Clearance>48” Top

6” One Side12” Other Side30” Front Panel

6”

Front Panel 30”

12”12”

InletAir

InletAir

InletAir

InletAir

Figure 1. Placement Dimension Requirements – Front View. Unit must be installed on level base.

33”

>48”

46”

A/C Pad

InletAir Inlet

Air

HumidExhaust

Air

Circulating Pump

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TROUBLE SHOOTINGSymptom Unit fails to start or perform

Inadequate cooling caused by insufficient water flow

Inadequate cooling caused by improper charge of refrigeration

Water draining from unit cabinet

Excessive Scale Build Up

Musty or unpleasant odor

Water spray out top of unit

Possible Remedy1. Check thermostat2. Check power3. Replace fuse4. Reset breaker5. Call electrician6. Check water level is at 5” in the sump 7. Call A/C service technician

1. Clean/replace pump intake screen and clean sump

2. Adjust/replace float3. Clean debris from impeller and replace pump

screen4. Check for leaks, tighten as needed5. Install new pump (must be thermal protected)6. Clean nozzles

1. Check for leakage in the system and make up refrigeration

2. Remove excessive refrigerant. Set charge to subcooling requirements

3. Replace refrigerant and install refrigerant drier.

1. Adjust float setting/replace float2. Tighten or replace drain cap or valve3. Level unit with shims or adjust/replace

mounting pad.4. See “Water Quality Purge Control”

1. Increase and measure purge rate2. Move make up connection to non- softened

water3. Add EVAPTreat water treatment (EVAPTreat

product lasts one season)

1. Drain, flush and clean reservoir. Check purge flow operation. Refer to unit water treatment bulletin.

1. Flush or rinse out base until soap residue is removed.

Possible Causes1. Thermostat setting2. No electrical power3. Fuse blown4. Circuit breaker tripped5. Faulty wiring or shorts6. High limit, low limit7. Condenser fan cord disconnected or

damaged

1. Water pump intake screen is clogged2. Water level too low (below 5”)3. Pump impeller clogged4. Loose connection in water pipes5. Wrong replacement pump (too small)6. Distribution nozzles clogged

1. Low on refrigerant2. Excessive refrigeration charge3. Refrigeration impurity

1. Water level too high2. Drain cap or valve loose or worn3. Cabinet not level4. Normal water purge operation

1. Low purge water volume2. Scale building up on pump screen3. Make up water from water softener4. Install or replace Evap Treat – inhibits

scale formation

1. Stale or stagnant water in reservoir

1. Soap in water basin

Notes: Inadequate cooling listed above refers only to the unit (outdoor) portion of the complete system. If cooling does not improve after checking the above listed items, consult the literature provided for the evaporator coil system and furnace/air handler.

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REFRIGERANT PIPING AND EVACUATIONRefrigerant HandlingThe United States Environmental Protection Agency (EPA) has issued various regulations regarding the introduction and disposal of refrigerant including that used in this unit. Failure to follow these regulations can result in harm to our environment and imposition of substantial fines and other penalties. As these regulations may be updated periodically, we strongly recommend that only certified refrigeration mechanics service the refrigeration components of this unit. You may contact your local EPA office directly for more information.

If you are replacing and existing air conditioner adn using the existing refrigerant lines, use a Flush Kit to clean the refrigerant lines before opening the AquaChill base valves.

Note: You must use a new evaporative coil with the TXV metering device designed for the AquaChill unit.

Refrigerant LinesUse only refrigerant grade (dehydrated and sealed) copper tubing of the size indicated in Table 1 to connect the UNIT to the indoor evaporator coil. Extreme care is required to keep the interior lines dry and clean. Do not remove the plugs from the ends of the lines until you are ready to make final connections.

Refrigerant Lineset InstructionsSecure the 3/8” copper liquid line to the suction line before installing the Insultube on the suction line. This will help keep the liquid refrigerant in a sub-cooled state.

! WARNING !Indoor evaporator coil suction and liquid line connections may be under pressure. Use extreme care when opening inlets for connection to service lines. Follow all manufacturer’s warnings and installation procedures.

Line InsulationIn order to prevent water condensation and possible damage to the building, a minimum of 3/4” wall thickness, flexibleinsulation is required to be installed on the suction line.

Field Connection – Refrigerant Lines to Valves on the Unit

! WARNING !When brazing fittings, always protect components with a damp cloth.

1. Tubing must be cut square with a tubing cutter and round at connection ends. Clean tubing to prevent contaminating the system.2. Remove front door.3. Wrap valve and tubing with damp cloth to prevent damage to valves. Protect cabinets with damp cloth.4. Use silver solder to braze all joints.5. Connect refrigerant condenser lines with indoor coil.6. Check all tubing for leaks. Evacuate and charge connecting lines as per charging instructions later in this manual.7. Pressure test with nitrogen at 200 psi. If pressure does NOT hold for 15 minutes, use leak detection then repeat test.8. Evacuate to 29.9 inches of mercury.9. Continue vacuum at least 30 minutes to remove moisture.

Refrigerant Connections Models

dLiqui 3/8” 3/8”

Vapor 3/4”

7/8”

AQV30 AQV42AQV60AQV41AQV54

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as a good indicator of the sump water conditions, increase the purge rate to maximum if you find heavy scale build-up.

The Purge Adjustment Table (Figure 8) assumes the use of Nu-Calgon EvapTreat food grade polyphosphate water treatment 4173-04.

Measuring Purge Drain Install the provided 1/2” plug x 3/4” elbow as shown to begin piping the drain line.

The fitting provides easy access for measuring the drain purge rate when the unit is operating by removing the 1/2” plug.

WATER QUALITY PURGE CONTROL PURGE ADJUSTMENT It is recommended to measure or refer to the local water conditions with regard to Hardness and Alkalinity to help you with the best water purge rate selection (Figure 6).

Use the “Purge Adjustment Valve” to control the amount of water that is purged from the unit during operation (Figure 9, part 10)Note: The Purge Adjustment Valve is shipped to provide a large purge rate at startup. This large purge rate will help flush and clean the purge assembly. Refer to (Figure 6 and Figure 8) to select your purge rate and adjust as needed.

Using the Purge Adjustment chart (Figure 8), plot your units application and find the suggested ounces per min purge rate. This is measured at the provided plug elbow just outside the unit (Figure 7). Slowly adjust the Purge Adjustment Valve from a closed position to a open position to redudce the purge drain rate. Allow the system to stabilize and measure the purge drain for your target amount, adjust as needed.

Suggested start up and measurement techniquesThe purge rate can vary a little when first installed. The purge rate is adjusted by using the purge valve located just below the purge collector piping. It is best to measure the drain several times during the start up in order to average the purge rate.

The purge valve adjustments should be done slowly as it will take 30 seconds for the internal water level to adjust to the new setting. After several minutes measure the purge rate using the plug elbow as a convenient location. It is recommended to take several 1 minute measurements and average the results. A good technique is to take 3 one-minute measurements over 5-10 minutes of operation. If adjustment is required, make small adjustments and recheck results over several tests to ensure you have consistency.

Helpful tipsWhen unsure of the water conditions use the maximum purge rate. The Purge Adjustment control table assumes the use of Nu-Calgons EvapTreat food grade Polyphosphate water treatment 4173-04.

The “Purge adjustment valve” allows you to set the correct amount of purge drain water. The local water conditions (Hardness and Alkalinity) will help to predict the best setting. (Figure 6 & Figure 8)

Note: during annual service, review the condition of the pump screen for help in determining your sump water condition. If you see a lot of scale forming on the pump screen, this would indicate that you should increase the purge rate up to the maximum setting for your model and your existing water condition. Measure and test the purge rate using the Adjustment valve and by measuring the purge water from the drain plug to the correct pruge target.

All water control information includes the use of Nu-Calgon EVAPTreat water conditioning. This is a food grade polyphosphate used to keep minerals suspended in the water until purged. The control table provided includes the use of the EVAPTreat water

Figure 7.

1/2” PLUG X 3/4” ELBOW IN DRAIN LINE

3/4” purge drain

1/2” plug

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77789

1011

REFRIGERANT CHARGE LEVEL FOR THE AQV MODELThe AQV model is designed to operate with a piston metering device. The Coil for this model is provided with a Piston metering device. A list is provided below indicating the piston size for each AQV model. *

Refer to the Superheat charging table to find the correct superheat temperature to charge the unit at the existing indoor and outdoor temperature conditions.

Information you will need to charge the unit correctly: Outdoor dry bulb temperature, and Indoor return air temperature dry bulb. Follow the outdoor dry bulb temperature across to the corresponding indoor temperature and find the target Superheat temperature you will charge to on the suction line.

The normal Head pressure chart is provided as a reference to check the head pressure against the outdoor condenser operating temperature. The outdoor pressure can vary depending on the sump water temperature. It will normally take 15–20 minutes for the water temperature to reach a stable temperature when the unit is operating.

*AQV30XP101 – piston size #65*AQV41XP101 – piston size #73*AQV52XP101 – piston size #83

NOTE: Cold Weather ChargingAttempting to Charge the unit below the ambient or indoor temperature is not recommended.

If the outdoor and indoor temperature is at the lower range of the table, it would be best to add heat to the indoor space before attempting to charge the unit. The sump water temperature on the condensing unit should be above 75 degrees before attempting to measure the superheat and charge the condenser. The discharge air from the condenser can be blocked slightly to help warm up the sump water at start up. The discharge restriction should be removed once the sump water maintains 75 degrees.

WATER TREATMENTChemical water treatment is usually not required. The chlorine and other treatments added to city water are generally more than adequate biocide treatments for residential applications. The purge control is provided to reduce the buildup of mineral deposits. The city water intake created by the unit operation and the purge flush control brings in additional biocides from the city water. The water pan is shaded to restrict the growth of algae. EVAPTreat is a food grade poly phosphate designed to raise the sump water saturation level, enabling the minerals to be purged out of the system during normal operation. The EVAPTreat is food-grade biodegradable and environmentally safe. It is recommended you do not use soft water for supply water to unit.

Using Test Strip to Measure Local Water ConditionsFor local water testing we recommend using a water test strip. A common test strip like “Water Works 4-in-1 City Water Check” works well and can quickly give you an idea of the local water conditions.

To use “Water Works” test strip:1. Use 8 oz. of water and dip the strip for 5 seconds - use a gentle

back and forth motion2. Remove strip and shake once to remove excess water3. Wait 20 seconds before taking reading4. Match colors of Alkalinity and Hardness included in “Water Works” test kit

graph within 10 seconds (color is not accurate after 10 seconds)

Select the higher reading on the Alkalinity or Hardness scale to select your purge rate. Adjust the purge rate by using the recommended minumum, average, or maximum purge rate and applying it to (Figure 8). Measure the water purge rate and compare with the target oz/min. Compare the measurement with the chart and make adjustmens to increase or decrease the purge rate as needed. When unsure of setting, use a higher setting rather than a lower setting. On future visits monitore the scale build-up on the pump screen

400 900 Max. purge rate

240 425 Max. purge rate

180 250 Avg. purge rate

120 120 Min. purge rate

80 50 Min. purge rate

Alkalinity Hardness Suggest

Figure 6. WATER TEST AND PURGE RATES

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Normal Head

PressureInlet Temperature PSIG

115 340110 330105 320100 31595 31090 30785 30480 29775 29070 28065 26060 240

Note: since the Aquachill product is Evapora veCooled the head pressure is less than Air Cooled product.

Ambient Condenser ( oF Dry bulb )

Ambient Condenser(oF Dry bulb)

Inlet Temperature 65 70 75 80 85115 7 7 7110 7 7 8105 7 8 8100 7 8 8 995 7 8 8 990 7 8 9 9 1085 7 8 9 9 1180 7 9 10 10 1275 8 9 10 10 1470 9 10 12 13 1565 10 12 14 15 1760 11 14 16 17 20

Find the correct Superheat where outdoor temperature and indoor temperatures cross

Aquachill produce uses Refrigerant 410a

Aquachill Superheat ChartFor charging systems with Piston Metering device

Return AirTemperature (oF Dry bulb)

Water Pumps

! WARNING !Use only a thermally protected water pump that is electrically safe and approved. Use of non-thermally protected pumps cause unreasonable risk of fire hazard in the event of pump failure.

The pump should be secured to the UNIT using the bracket provided.

Condensate Pipe Plumbed to Unit. Condensate from indoor A/C coil is routed to drain back into the AquaChill sump to reduce the need for fresh water.

Front Service

Panel

Wall

CondensateDrain fromEvaporator Coil

WATER PIPING AND WATER ADJUSTMENTSInstall the water Float Valve 1. Remove the 1/2” threaded nut on the water valve fitting provided.2. Install the 1/2” threaded water valve through the case. The hole for the water valve has been provided and is located 11” from the

bottom on the left side.3. Tighten the 1/2” threaded nut with the white water drip tube straight down.4. Make sure the float arm is free to operate.5. Install the 1/2”x1/4” compression fitting on the 1/2” float valve on the outside of the AquaChill unit.6. Use 1/4” water line and connect it to the 1/4” compression fitting.

Test the water valve and water connections for leaks and tighten as needed. The float valve will begin to rise and close the water valve when the water level gets to 5” high.

Water ConnectionBe sure there is adequate water pressure for the 1/4” float valve. Usually a 1/4” line provides enough water to connect thefloat valve. Turn the water supply on and adjust the float. Set water depth to 5”. Do not use soft water for water supply line.

CautionWater depth in base will rise over 5” when water flow stops. Check float level setting while the pump is running. Failure to properly set the float level could cause premature scale buildup and loss in performance or overflow.

Check float operation by draining water out of unit and then watching the float refill sump to the proper level. Supply water should be turned off in the winter.

1/4” Water Fitting

Sump Drain Cap

Circulating Pump

Drain Plug Elbow

Figure 3. WATER PIPING Figure 4. RECOMMENDED OPTION

A/C Pad

Condensate Drain Line

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SYSTEM START UPCondensing unit is supplied with an R-410A charge sufficient for recommended evaporator coil sizes and refrigerant line set. Your unit’s liquid and suction valves are closed in order to contain the charge in the unit. The recommended procedure for correctly setting the charge of the complete system is as follows:

1. Using a service gauge set, connect vacuum pump to the two base valve service ports.

2. Evacuate line set tubing and indoor evaporator coil via the two service valves on your gauge set to 500 microns or less for a minimum of 30 minutes.

3. Close valve to pump and wait 15 minutes. Vacuum must not rise above 800 microns during this 15 minute time period.

Note: If you are using a standard service gauge set (without a micron gauge), there should be essentially no change in the suction gauge vacuum reading during this 15 minute wait.

4. If the system does not rise above 800 microns in 15 minutes skip to step 7.

5. If the system does rise above 800 microns in 15 minutes, you have a leak. Locate and repair leak.

6. Repeat steps 2 through 4.

7. Close all valves to vacuum pump. Stop pump and remove it.

8. Remove base valve top caps. Protect this cap from dust and other debris. Cap must be clean in order to reinstall without leakage.

9. Using an Allen wrench, break open the valve bodies. Oil will be present at the valve stem opening. This oil is placed there by the manufacturer and is normal. Fully open the valve until it is firmly back seated. Do not over tighten.

10. Replace the valve stem cap, turning it finger tight. Tighten it with a wrench an additional 1/6 rotation to ensure a tight seal. DO NOT over tighten.

11. Set thermostat system switch to “cool” and temperature to its highest setting. Close all disconnects.

12. Set thermostat to call for cooling. Check that:

a. The indoor coil’s fan is operating.

b. The outdoor unit’s compressor is operating.

c. The unit water pump is operating.

d. The unit condenser fan is operating.

13. Allow the unit to run for a minimum of 15 minutes. (Recommend sump water temperature at least 75°F)

14. Check the charge against the appropriate charging table. Adjust charge if required. See Charge Checking Procedures.

15. With the unit operating, remove the 1/2” plug from the drain elbow and measure to drain amount for 1 minute. Refer to the purge chart on figure 8 for more information regarding adjusting the purge rate.

Charge Checking Procedures

CautionYou MUST check the charge using pressure gauges and digital thermometers as described below. Adjusting charge based on temperature “feel” of the suction line can lead to serious mischarging. Failure to properly charge this system can lead to serious compressor damage and possible warranty breach.

Note: Refrigerant charging can only be done by trained personnel with proper equipment. Follow current EPA guidelines for refrigerant. Refrigerant venting is prohibited by law.

The coil metering device should be a thermostatic expansion valve. See Refrigerant Charge section for charging the system.

PURGE DISCHARGE The purge drain operates when the unit is operating. The purge collection system collects water and directs it to the purge drain line and the adjustment valve. The amount of water that that drains from the unit is a critical function that keeps your unit operating efficiently, helps keep the sump water clean, and reduces scale build up. Refer to the Purge Adjustment information on (Page 7) for instructions on how to adjust the proper amount of purge drain rate.

The Purge Drain ConnectionInstall the provided 3/4”x1/2” plug elbow on the exterior of the drain piping (See Diagram). This elbow with the 1/2” plug in the bottom provides a very important feature. During the start up and operation mode the 1/2” plug is removed so that you can measure the volume of purge drain. Refer to (Page 7) for Purge Adjustment rates.

The purge drain line will drain a small amount of water as the unit operates. This line can be run to a flower bed, garden area, landscaping area, or landscaping area drain. Ensure the drain line is clear and the pipe is sloped to 1/4” to the foot, the maximum drain line pipe length is 10 ft.

ELECTRICAL WIRING AND CIRCUITSElectrical HookupBring electrical conduit to the junction box provided. Wire in accordance with local codes. All switches and connectors must conform to local codes for the amperage of the compressor, fan, and water pump(s) provided. A disconnect must be provided at the unit.

Instructions (Fig. 5)1. Route flexible conduit and supply power lines from disconnect to line voltage hole inside of the unit electrical box.2. Connect line voltage wires to contactor provided in the unit electrical panel.3. Route ground wire to ground lug in electrical panel. Note: separate ground wire is required.4. Route low voltage control wires through grommet in bottom of low voltage side of the unit electrical box. Connect as shown.

DANGER of serious injury or death. Disconnect all electricity before servicing.

! WARNING !There may be multiple disconnects on each unit and all disconnects must be turned off . Check local codes for wiring. Wiring connections and adjustments should be made ONLY by qualified persons. Amperage must not exceed total nameplate ratings of the electrical equipment.

Note: Ground wire is requiredFigure 5. ELECTRICAL WIRING

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