HydroTech IOM8001 Water Source Heat Pump User Manual

: June 9, 2024
: HYDROTECH

Table of Contents

IOM8001 Water Source Heat Pump
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IOM8001 Water Source Heat Pump

Water Source Heat Pump 16 EER
Installation, Operation, & Maintenance
IOM8001 Rev. D 04/22

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TABLE OF CONTENTS

3. 4. 5: 6: 7: 8-9: 10: 11: 12: 13: 14: 15: 16-18: 19-20: 21: 22: 23-27: 28-31: 32: 33:

Nomenclature Safety Considerations General Information Installation Precautions Installation Precautions (Cont.) Technical Data Physical Details Mounting Details Water & Electrical connections Water Flow Pressure Drop Table Duct Connections Application Piping Controls Thermostat Electrical Wiring Diagram Start Up Instruction Troubleshooting Preventative Maintenance

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NOMENCLATURE

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SAFETY CONSIDERATIONS:
1. READ THE ENTIRE MANUAL BEFORE STARTING THE INSTALLATION. 2. These instructions are intended as a general guide and do not
supersede national, state, or local codes in any way. 3. Altering the product, improper installation, or the use of unauthorized
factory parts voids all warranty or implied warranty and may result in adverse operation and/or performance or may result in hazardous conditions to service personnel and occupants. Company employees or contractors are not authorized to waive this warning. 4. This product should only be installed and serviced by a qualified, licensed, and factory authorized installer or service agency. 5. All “kits” and “accessories” used must be factory authorized when modifying this product. Refer and follow instructions packaged with the kits or accessories when installing.
RECOGNIZE THE FOLLOWING SAFETY NOTATIONS THROUGHOUT THIS MANUAL AND POSTED ON THE EQUIPMENT:
This warning siginifies general hazards which could result in personal injury or death.
This warning siginifies electrical shock hazards which could result in injury or death.
Caution is used to identify unsafe practices which could result in injury or death.
Note is used to highlight suggestions which may result in enhanced installation, reliability, or operation.

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GENERAL
DO NOT use these units as a source of heating or cooling during the construction process. Mechanical components and filters become clogged with dirt and debris, which can cause damage to the system.
The manufacture does not warrant equipment subjected to abuse. Construction debris can void warranties and liability for equipment failure, personal injury, and property damage.
Before servicing equipment, ALWAYS turn off all power to the unit. There may be more than one disconnect switch. Electrical shock can cause injury or death.
Clear surrounding area of all tools, equipment, and debris before operating this unit.
Unit must never be operated under any circumstances without an air filter in place.
These instructions are given for the installation of the WSV6 Water source heat pump specifically. For any other related equipment, refer to the appropriate manufacturer’s instructions.
Material in this shipment has been inspected at the factory and released to the transportation agency in good condition. When received, a visual inspection of all cartons should be made immediately. Any evidence of rough handling or apparent damage should be noted on the delivery receipt in the presence of the carrier’s representative. If damage is found, a claim should be immediately filed against the carrier.
These models are designed for indoor installation only. Installation of this equipment, wiring, ducts, and any related components must conform to current agency codes, state laws, and local codes. Such regulations take precedence over general instructions contained in this manual.
Extreme caution must be taken that no internal damage will result from screws that are drilled into the cabinet.

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INSTALLATION PRECAUTIONS
Use two or more people when moving and installing these units. Failure to do so could result in injury or death. Contact with metal edges and corners can result injury. Protective gloves should be worn when handling. Exercise caution when installing and servicing unit.

Observe the following precautions for typical installation: Always use proper tools and equipment No wiring or any work should be attempted without first ensuring the unit is completely disconnected from the power source and locked out. Also, verify that a proper permanent and uninterrupted, ground connection exists prior to energizing power to the unit. Review unit nameplate and wiring diagram for proper voltage and control configurations. This information may vary from unit to unit.

When unit is in operation components are rotating at high speeds and caution should be taken.

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INSTALLATION PRECAUTIONS CONT.
When soldering and brazing, it is recommended to have a fire extinguisher readily available. When soldering and brazing close to valves or sensitive components, heat shields or wet rags are required to prevent damage to the valves or components.
Insulation is installed in the unit to provide a barrier between varying atmospheres outside and within the unit. If insulation is damaged condensation can occur and can lead to corrosion, component failure, and possible property damage. Damaged insulation must be repaired prior to the operation of the unit. Insulation will lose its effectiveness and value when wet, torn, separated, and/or damaged.
ALWAYS WEAR ALL APPROPRIATE PERSONAL PROTECTION EQUIPMENT WHEN INSTALLING AND SERVICING THESE UNITS.

When servicing this equipment, because of high pressures, make sure the reversing valve, expansion device, filter drier and other components are specifically designed for R-410A refrigerant. ONLY USE service equipment specifically designated for use with R-410A.
R-410A can become combustible if mixed with air at elevated temperature and/or pressure. Failure to follow this warning could result in property damage and personal injury or death.

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TECHNICAL DATA:

PERFORMANCE DATA

MODEL
WSV6009 WSV6012 WSV6018 WSV6024 WSV6030 WSV6036 WSV6042 WSV6048 WSV6060 WSV6072

NOM. FCM
330 450 600 800 870 1150 1250 1475 1640 1890

GPM
3.0 3.0 4.5 6.0 8.5 9.0 10.7 12.0 15.0 18.0

PERFORMANCE DATA – CERTIFIED AT AHRI/ISO 13256 – 1 CONDITIONS

WATER LOOP (entering Water Temperature)

86 Deg.F

68 Deg.F

COOLING EER HEATING COP

9,200 16.0 10,800 4.80

11,500 16.0 13,200 4.70

17,800 16.0 22,600 4.60

22,600 16.0 25,000 4.90

30,000 16.0 33,000 4.70

36,000 16.0 41,000 4.90

42,000 16.0 45,000 5.00

48,000 16.0 57,000 5.00

60,000 16.0 68,000 4.80

72,000 16.0 78,000 4.50

GROUND WATER (entering Water Temperature)

59 Deg.F

50 Deg.F

COOLING EER HEATING COP

10,800 24.00 8,400 3.8

13,200 24.00 10,500 3.8

20,800 24.00 18,400 4.0

25,400 24.00 22,000 4.1

34,000 23.00 29,000 4.0

42,500 24.00 35,500 4.1

46,500 24.00 39,000 4.2

55,500 24.00 43,500 4.0

65,000 23.00 53,500 4.1

77,500 22.50 66,500 4.0

PERFORMANCE DATA – AT STANDARD OPERATING CONDITIONS

STANDARD (entering Water Temperature)

85 Deg.F

70 Deg.F

COOLING EER HEATING COP

9,300 15.90 11,000 4.70

11,500 15.80 13,300 4.60

17,600 16.20 23,000 4.50

23,000 16.30 25,000 4.80

30,500 16.00 33,500 4.50

38,000 16.50 41,500 4.80

42,500 16.20 46,000 4.90

50,000 16.40 59,000 4.90

59,000 15.90 69,000 4.70

71,500 15.90 79,000 4.40

MODEL NUMBER WSV6009 WSV6012 WSV6018 WSV6024 WSV6030 WSV6036 WSV6042 WSV6048 WSV6060 WSV6072

VOLTAGE
208/230V-1-60 208/230V-1-60 208/230V-1-60 208/230V-1-60 208/230V-1-60 208/230V-1-60 208/230V-1-60 208/230V-1-60 208/230V-1-60 208/230V-1-60

ELECTRICAL DATA

COMPRESSOR BLOWER

RLA

LRA FLA HP

3.7

22.0 2.3 1/4

4.7

25.0 2.3 1/4

10.0

56.3 2.8 1/3

10.9

62.9 4.1 1/2

15.4

82.6 4.1 1/2

15.4

83.9 4.1 1/2

19.2 123.4 4.1 3/4

19.6 130.0 7.6 1

27.1 144.2 7.6 1

34.3 178.0 7.6 1

MIN. CIRCUIT AMPACITY 9 10 15 17 24 24 29 34 42 52

MAX. CIRCUIT PROTECTION
15 15 20 25 35 35 45 50 60 70

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BLOWER DATA

MODEL NUMBER WSV6009 WSV6012 WSV6018 WSV6024 WSV6030 WSV6036 WSV6042 WSV6048 WSV6060 WSV6072

FAN SPEED
HIGH
MEDIUM
LOW
HIGH
MEDIUM
LOW HIGH STATIC HIGH
LOW HIGH STATIC HIGH
LOW HIGH STATIC HIGH
LOW HIGH STATIC HIGH
LOW HIGH STATIC HIGH
LOW HIGH STATIC HIGH
LOW HIGH STATIC HIGH
LOW HIGH STATIC HIGH
LOW

MOTOR TERMINAL
NO. WHT VIO GRY WHT VIO GRY
4
3 2
4
3 2
4
3 2
4
3 2
4
3 2
4
3 2
4 3 2
4
3 2

0.1 380 360 310 520 460 430
– 600 540
– 760 630
– 940 600
– 1,130 990
– 1,330 1,030
– 1,550 1,370
– 1,900 1,710
– 2,010 1,860

BLOWER DATA

CFM vs. STATIC PRESSURE (in. w.g.)

0.2 0.3 0.4 0.5 0.6 0.7 0.8

360 330 300 270

–

330 300 260 230

–

270 230 200 180

–

500 480 440 410

–

440 410 380 360

–

400 360 350 330

–

770 740 690 660

–

580 530 500 460

–

510 460 430 370

–

980 950 900 880

–

740 710 650 610

–

600 550 510 480

–

980 930 900 870

–

900 870 830 790

–

550 500 450 410

–

– 1,320 1,290 1,270 1,240 –

–

1,090 1,060 1,030 1,000 –

–

950 910 880 850

–

– 1,370 1,340 1,320 1,290 –

–

1,300 1,270 1,240 1,220 –

–

1,000 960 920 890

–

– 1,620 1,580 1,560 1,520 –

–

1,530 1,510 1,480 1,450 –

–

1,350 1,330 1,290 1,260 –

–

– 2,130 2,080 2,060 2,030 –

–

1,860 1,820 1,780 1,740 –

–

1,670 1,620 1,580 1,540 –

–

– 2,080 2,060 2,010 1,990 1,950 1,960

1,980 1,950 1,910 1,860 1,830 1,790 1,740 1,830 1,780 1,740 1,700 1,670 1,620 1,590

0.9 – – – – – –
– – –
– – –
– – –
– – –
– – – – – –
– – –
1,880 1,710 1,530

1.0 – – – – – –
– – –
– – –
– – –
– – –
– – – – – –
– – –
1,830 – –

FACTORY BLOWER SETTINGS

COOLING

HEATING

1 – 10 10+ MIN MIN

x

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PHYSICAL DATA:
MODEL NUMBER
WSV6009 WSV6012 WSV6018 WSV6024 WSV6030 WSV6036 WSV6042 WSV6048 WSV6060 WSV6072

DIMENSIONS

Width

Depth Height Ship WT.

21.50

36.25

164

21.50

36.25

166

21.50

36.25

195

21.50

36.25

208

21.50

39.25

221

21.50

26.00

43.25

254

26.00

43.25

295

26.00

43.25

315

26.00

51.25

360

26.00

51.25

365

Electrical Connections

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MOUNTING DETAILS
It is important to ensure the unit is securely mounted and that the mounting structure is sufficient to support the operating weight of the equipment. Place and size all anchors to ensure a safe and durable installation.
Locate the unit to provide all minimum clearances as specified and that allows for adequate serviceability of the unit including filter access and panel removal. Consider proper clearances needed for water connections, electrical connections, duct connections, and sufficient return airflow.
These units are for indoor installation ONLY (**Units should always be mounted on a solid surface and not just a frame)

MOUNT ON HIGH PLATFORM

HANGING FROM CEILING

ISOLATION PAD

FIGURE 1. MOUNTING EXAMPLES
Do not locate unit in areas subject to freezing temperatures or where high humidity levels could cause cabinet condensation. WSV6 units are available in right and left hand configurations. Units should be mounted level with a proper drain pan pitch toward the condensate drain. 3/8″-1/2″ vibration isolation pads should be used to minimize vibration transmission.

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WATER & ELECTRICAL CONNECTIONS

Water Out Water In

Condensate

Control Panel Sight Glass

MODEL NUMBER
WSV6009 WSV6012 WSV6018 WSV6024 WSV6030 WSV6036 WSV6042 WSV6048 WSV6060 WSV6072

DIMENSIONS

Condenser Water
Connections

Condensate Connections

3/4″ F.P.T. 3/4″ F.P.T.

1″ F.P.T.

3/4″ F.P.T.

1-1/8″ F.P.T. 3/4″ F.P.T.

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WSV6009 WSV6012 WSV6018 WSV6024 WSV6030 WSV6036 WSV6042 WSV6048 WSV6060 WSV6072

Water Flow Pressure Drop Table

Flow Rate (GPM)

1.0 2.0 3.0 4.0 5.0 6.0 7.0

Pressure Drop (PSI)

0.2 0.9 1.9 3.0 4.5 6.3 8.2

Flow Rate (GPM)

2.0 3.0 4.0 5.0 6.0 7.0 8.0

Pressure Drop (PSI)

1.0 2.0 3.3 4.8 6.6 8.7 10.9

Flow Rate (GPM)

2.0 3.0 4.0 5.0 6.0 7.0 8.0

Pressure Drop (PSI)

1.0 2.0 3.3 4.8 6.6 8.7 10.9

Flow Rate (GPM)

5.0 6.0 7.0 8.0 9.0 10.0 11.0

Pressure Drop (PSI)

1.4 2.0 2.6 3.3 4.1 5.0 6.0

Flow Rate (GPM)

6.0 7.0 8.0 9.0 10.0 11.0 12.0

Pressure Drop (PSI)

2.3 3.0 3.9 4.8 5.8 6.9 8.0

Flow Rate (GPM)

6.0 8.0 10.0 12.0 14.0 16.0 18.0

Pressure Drop (PSI)

1.1 1.9 2.8 4.0 5.2 6.7 8.2

Flow Rate (GPM)

7.0 9.0 11.0 13.0 15.0 17.0 19.0

Pressure Drop (PSI)

1.4 2.1 3.0 4.1 5.2 6.6 8.0

Flow Rate (GPM)

12.0 14.0 16.0 18.0 20.0

Pressure Drop (PSI)

2.6 3.5 4.7 5.9 7.4

Flow Rate (GPM)

12.0 14.0 16.0 18.0 20.0 22.0 24.0

Pressure Drop (PSI)

2.6 3.3 4.2 5.1 6.2 7.3 8.5

Flow Rate (GPM)

12.0 14.0 16.0 18.0 20.0 22.0 24.0

Pressure Drop (PSI)

2.6 3.3 4.2 5.1 6.2 7.3 8.5

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DUCT CONNECTIONS

SUPPLY DUCT CONNECTIONS

MODEL

A

B

NUMBER Duct Duct

WSV6009 7.75 12.75

WSV6012 7.75 12.75

WSV6018 13.75 16.25

WSV6024 13.75 16.25

WSV6030 13.75 16.25

WSV6036 15.75 16.25

WSV6042 17.75 17.75

WSV6048 17.75 17.75

WSV6060 19.00 19.00

WSV6072 19.00 19.00

All duct work must be installed in accordance with National Fire Protection Assoc. Codes 90A and 90B. Supply and Return ducts must be sized properly as to not exceed static pressure capabilities (See Blower Data Table Pg.9) Ducts should be adequately insulated to prevent condensation and to minimize heat loss. A flexible connector is recommended for supply air connections on metal duct systems.

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APPLICATION:
To ensure optimum cooling and heating performance, the cooling tower and boiler loop temperature should be maintained between 55-75 deg. F in the heating mode and 60-95 deg. F in the cooling mode. Heat is rejected from the heat pump’s refrigerant into the water loop in the cooling mode, and heat is absorbed from the water loop into the refrigerant in the heating mode. A cooling tower and/or boiler may be required to maintain proper water temperature within the water loop. In an open cooling tower, chemical water treatment is mandatory to ensure water is free of corrosive materials. Failure to maintain proper water loop temperatures could result in equipment failure and property damage, and void warranties. When a secondary heat exchanger is used (i.e. plate to plate; closed loop system) it is imperative that all air is purged from the system to prevent condenser fouling.
THE ENTIRE WATER LOOP MUST BE COMPLETELY CLEANED AND FLUSHED OF ALL DEBRIS PRIOR TO FINAL CONNECTIONS AND UNIT OPERATION. Valves should be adjusted to supply proper water flow rated for the unit. Nominal flow rate is 3 GPM per 12,000 BTUH of cooling. Failure to do so will VOID ALL FACTORY WARRANTY.

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PIPING

Piping Notes:

1. Flush all field piping prior to connection to clear all debris.

2. Open all valves (mid-way for hand valves, manually open motorized

valves) prior to soldering and brazing. Use proper heat shields to

protect valve bodies.

3. When soldering or brazing to the unit, it is recommended to have a

fire extinguisher readily available.

4. Use proper soldering and brazing techniques to protect valve

bodies and unit components.

5. Avoid rapid quenching of soldered joints to prevent weakening.

6. Make provisions for expansion and contraction of piping systems

to provide movement with temperature changes. Failure to do so

will result in damage and failure of piping, fittings, and valves

throughout the system.

7. DO NOT insulate the heads or motorized portion of control valves.

Excessive heat build-up can cause damage and affect proper

operation of the system.

8. Consider electrical routing when installing field piping.

9. Observe all regulations and codes governing installation of piping.

When all connections are complete, pressure test the system,

and repair any leaks or faulty joints. HYDRONIC SYSTEMS ARE NOT

DESIGNED TO HOLD PRESSURIZED AIR AND SHOULD ONLY BE

TESTED WITH WATER. Failure to observe this note could damage

the system.

Piping Installation:
All piping must be adequately sized to meet the designed water flow as specified for the specific application, and must adhere to all applicable codes. Piping connections on the equipment are not necessarily indicative of the proper supply and return line sizes. Refer to the project drawings and specifications for sizing.

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PIPING (Cont.)
When connecting piping to fan coil units, do not bend or reposition the coil header tubing for alignment purposes. This could cause a tubing fracture and result in a water leak and will void warranty.
Condensate drain lines must be properly installed with adequate slope away from unit to assure proper drainage. A minimum trap of 1.5 inches must be installed to isolate the negative pressures of the drain pan from the drain line.
Check the condensate overflow sensor for proper operation and adjust if necessary. Final field adjustment ensures proper operation to avoid property damage.
On units with plastic drain pans the drain connection must be made hand tight only.
Chilled water piping must be properly insulated to prevent condensation and potential property damage. It is also recommended that all piping be insulated to prevent freezing in unconditioned spaces.
Do not bend or kink supply lines or hoses. Adhere to minimum bend radii to prevent piping damage and potential restrictions in water flow.

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PIPING (Cont.)
For all applications, 50 deg. F minimum entering water temperature and rated water flow is required to prevent freezing. Antifreeze solution is required for any application with entering water below 50 deg. F
These units are designed to operate with the entering liquid temperature between 50 and 100 deg. F. With the extended range option, the heat pump model can operate with entering liquid temperatures between 30100 deg. F. below 50 deg. F. Antifreeze solution must be used to prevent freezing. Frozen coils water coils are not covered under warranty.
When anti-freeze is used in the loop, insure that it is compatible with the Teflon tape that is applied.
Cooling Tower / Boiler and Geo Thermal applications should have sufficient antifreeze solution when required to protect against freezing.
Well Water Application:
When a well is used for supplying water, a cupronickel heat exchanger is required and the well pump must operate only when the heat pump operates. A 24V contactor can be wired to the ACC1 terminal on the control module which can be selected to energize prior to or at compressor startup.
Closed loop and pond applications require specialized design knowledge. No attempt at these installations should be made unless the licensed installer as received specific training.

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CONTROLS
Standard Safety controls included with the WSV6:
High Pressure switch on the refrigerant discharge line Low pressure switch on the refrigerant suction line Water coil low temp cutout on the heat exchanger Condensate overflow protection in the drain pan Anti-short cycle timer for compressor protection Random start 5-80 second start upon power up
Control Notes:
The low pressure switch input is bypassed for the initial 120 seconds of a compressor run cycle to prevent nuisance lockouts.
Should an over/under voltage condition be detected, the module will initiate shutdown. This feature is self-resetting when the voltage comes back into operational range of 18.5-31VAC.
The module has a set of contacts for remote fault indication. Contacts can provide a 24VAC output or converted to a dry contact.
Test mode can be entered by momentarily jumping test pins. This will enter the unit into a 10 minute test period in which all time delays are sped up by 15X. While in the test mode the LED display will display the last fault code.
While in the fault retry mode the LED display the retry and fault code.
The unit will initiate the anti-short cycle timer and try to restart after delays. If 3 consecutive faults occur the control will go into lockout mode. The last fault causing the lockout will be stored. The lockout and fault code will be displayed. The compressor relay will be turned off and the alarm relay activated.
Lockout mode can be soft reset by turning the thermostat to the off position and the back to heat or cool. Or a hard reset via the power disconnect.

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CONTROLS (Cont.)

SIGHT GLASS
CONTROLLER OPERATING CODES LABEL

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Thermostat

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ELECTRICAL
Disconnect all power supplies before servicing. Lock out/tag out to prevent accidental electrical shock. NOTE: There may be multiple power sources supplying the unit.

Use copper conductors only. Install all parts and panels before operation of unit. Failure to follow these warnings can result in injury or death.
All wiring must comply with local and national code requirements. Units are provided with wiring diagrams and nameplate data to provide information required for necessary field wiring.
These units are provided with a class 2 transformer for 24 volt control circuits. Should any add-on accessory or component also have a class 2 transformer furnished, care must be taken to prevent interconnecting outputs of the two transformers by using a thermostat with isolating contacts.
Connect ground wire to ground terminal marked “GND”. Failure to do so can result in injury or death.
Any device that has been furnished by the factory for field installation must be wired in strict accordance with the associated wiring diagram. Failure to do so could damage components and void warranties.

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WIRING DIAGRAM

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PRE-START UP CHECK LIST
Before Start-up, all components should be checked thoroughly. The system should be completely cleaned of all construction dirt and debris. Coils should be cleaned using an industry acceptable cleaning method.
Prior to starting the unit:
1. Ensure supply voltage matches nameplate data. 2. Ensure unit is properly grounded. 3. WITH POWER OFF, check blower wheel set screws
for proper tightness and that the blower wheel rotates freely. 4. Ensure unit is properly and securely installed. 5. Ensure proper slope for condensate drainage. 6. Ensure accessibility for future servicing. 7. Ensure condensate line is properly sized, attached, trapped, pitched, and tested. 8. Ensure all cabinet openings and wiring connections are tight and sealed. 9. Ensure a clean filter is installed. 10. Ensure all access panels and cover plates are properly installed and secured. 11. Ensure that all air has been vented from the water coil. 12. Check that the water coil, valves, and piping are leak checked, and insulated as required. 13. Ensure all components have been installed and wired in strict accordance with the documents provided. 14. Ensure electrical overcurrent protection and wiring are correct size. 15. Verify all dip switches are set to the off position for standard unit operation. (Dip switch 1, position 2 is set to on only if DC motor is installed. (See figure 11) 16. All water piping is complete and connections are leak free. 17. Check condensate overflow sensor for proper operation and position. 18. Unit is securely mounted and properly isolated for vibration.

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UNIT START UP:
1. Set thermostat to highest setting, and the system switch to COOL, and the fan switch to AUTO. Reversing valve should energize, compressor and fan should run after 5 minute time delay.
2. Reduce thermostat setting to 5 degrees below room temperature. Verify cooling mode and PROPER ROTATION OF COMPRESSOR.
3. Turn thermostat system switch to OFF. Unit should shut down and reversing valve should de-energize.
4. AFTER 5 MINUTES (allow pressures to equalize) Set thermostat to lowest setting and set system switch to HEAT. Increase setting to 5 degrees above room temperature.
5. Heat pump should energize. 6. Set thermostat to desired room temperature and set system switch to
appropriate seasonal setting or AUTO. 7. Re-Check system for any leaks or abnormal vibrations. 8. Verify proper water flow rate and adjust if necessary. Nominal 3 GPM
per 12,000 BTHU. 9. Instruct the owner on proper operation of the unit and thermostat and
provide them with relative documentation.
BLOWER SPEED:
PSC Motors:
Units come from the factory set to deliver rated airflow at unit designed static pressure. The heat pump has a built in dehumidification function that runs the lower fan speed for 10 minutes, the increases to the nominal CFM output until the thermostat is satisfied. All units have field adjustable motors. Refer to blower data (Pg. 9) for system adjustments from normal.

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DC Motors:
No fan speed relays are used. Three motor leads connect directly to the control board. See wiring diagrams for speed tap selections.

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STARTUP LOG

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TROUBLESHOOTING:

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PREVENTIVE MAINTENANCE:
To achieve maximum performance and service life of equipment, a formal schedule of regular maintenance should be established and adhered to.
ALL APPROPRIATE PERSONAL PROTECTION EQUIPMENT SHOULD BE WORN WHEN SERVICING OR MAINTAINING THIS UNIT.
Personal injury can result from sharp metal edges, moving parts, and hot or cold surfaces.
Fan: The fan should be inspected and cleaned annually in conjunction with maintenance of the motor and bearings. It is important to keep the fan section and motor clean and free from obstruction to prevent imbalance, vibration, and improper operation.
Motor: Check motor connections to ensure they are secure and in accordance with the unit wiring diagram. ECM motors have line voltage power applied at all times. MAKE SURE POWER IS DISCONNECTED BEFORE SERVICING.
Filter: The air filter should be cleaned or replaced every 30 days or more frequently if severe operating conditions exist. Always replace the filter with the same type and size as originally furnished.
Coil: Clean all heat transfer surfaces and remove all dirt, dust, and contaminates that potentially impairs air flow using industry accepted practices. Care should be taken not to bend coil fin material.
Condensate drain pan and pipe: Check and clean all dirt and debris from pan. Ensure drain line is free flowing and unobstructed.
Maintenance Updates: Contact Factory for current Maintenance Program Information.

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P.O. BOX 270969, Dallas, TX 75227 www.firstco.com or www.ae-air.com
The manufacturer works to continually improve its products. It reserves the right to change design and specifications without notice. ©2022 First Co., Applied Environmental Air