REZNOR H25 Huracan Series Destratification Fan User Manual

: June 9, 2024
: Reznor

Table of Contents

H25 Huracan Series Destratification Fan
GENERAL INFORMATION
Important Safety Information
INSTALLATION
Unit Suspension
Electrical Connections
CONTROLS
OPERATION
MAINTENANCE
TROUBLESHOOTING
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H25 Huracan Series Destratification Fan
User Manual Revision: H-IOM (01-23) 1042427-0
Supersedes: — (Original Version)

H25 Huracan Series Destratification Fan

DESTRATIFICATION FAN INSTALLATION, OPERATION, AND MAINTENANCE
HURACAN TM SERIES MODELS H25, H35, H50, AND H60
DO NOT DESTROY . PLEASE READ CAREFULLY. KEEP IN A SAFE PLACE FOR FUTURE REFERENCE .

GENERAL INFORMATION

This unit has been tested for capacity and efficiency so as to provide many years of safe and dependable comfort providing it is properly installed and maintained . With regular maintenance, this unit will operate satisfactorily year after year . Abuse, improper use, and/or improper maintenance can shorten the life of the appliance and create unsafe hazards.
To achieve optimum performance and minimize equipment failure, it is recommended that periodic maintenance be performed on this unit. The ability to properly perform maintenance on this equipment requires certain tools and mechanical skills.

References

Table 1. Related Technical Manuals Available from Factory Distributor

Important Safety Information

Please read all information in this manual thoroughly and become familiar with the capabilities and use of your appliance before attempting to operate or maintain this unit. Pay attention to all dangers, warnings, cautions, and notes highlighted in this manual. Safety markings should not be ignored and are used frequently throughout to designate a degree or level of seriousness.
DANGER: A danger statement describes a potentially hazardous situation that if not avoided, will result in severe personal injury or death and/or property damage.
WARNING: A warning statement describes a potentially hazardous situation that if not avoided, can result in severe personal injury and/or property damage.
CAUTION: A caution statement describes a potentially hazardous situation that if not avoided, can result in minor or moderate personal injury and/or property damage.
NOTE: A note provides important information that should not be ignored.

⚠ WARNING ⚠

This appliance is not intended for use by persons with reduced physical, sensory, or mental capabilities or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.

⚠ CAUTION ⚠
To prevent damage to the unit or to its internal components, it is recommended that two wrenches be used when loosening or tightening nuts . Do not over tighten!
Certification
These destratification fans are listed by Intertek for use in the United States and in Canada.
Warranty
Refer to the limited warranty form in the literature bag provided with the unit . The warranty is void if:

Wiring is not in accordance with the diagram furnished with the unit.
The air delivery system is modified.
Improper installation of suspension system.

⚠ CAUTION ⚠
Do not install the unit where it may be exposed to water spray, rain, or dripping water.
NOTE: Do not install the unit near high temperature heat sources. Do not install the unit in a position in which the downward air column created by the fan is directly bisected by another airflow source.
Do not install the unit close to any object that might interfere with fan operation or allow fan blades to come into contact with any object.
Refer to Table 2 for mounting height and airflow data.

Table 2. Unit Mounting Height and Airflow

Model| Mounting Height (Feet)| Nominal Airflow Rate (CFM)| Nominal Area (Square Feet)| Airflow Volume (Cubic Feet)
Minimum | Maximum
H25| 10| 25| 600| 1000| 25,000
H35| 18| 35| 1000| 1500| 52,500
H50| 25| 50| 1500| 1500| 75,000
H60| 30| 60| 2000| 2000| 120,000
If the unit will be mounted below the listed minimum mounting height, it is recommended that multiple smaller fans be considered for installation.

Dimensions

Table 3. Dimensions

27 (686)

| ****

12 (305)

H35| 17 (432)
H50, H60| 25 (635)

Weights

Table 4. Weights

Model
H25| H35| H50| H60
Pounds (kg)
22 (10)| 28 (13)| 38 (18)| 43 (20)

INSTALLATION

Unpacking and Inspection
The unit was test-operated and inspected at the factory prior to packaging and was in operating condition. If, upon removing it from its packaging, the unit is found to have incurred any damage in shipment, document the damage with the transporting agency and contact an authorized Factory Distributor. If you are an authorized Distributor, follow the FOB freight policy procedures.
Pre-Installation Checklist

Read this manual and become familiar with the installation requirements.
Before beginning, make preparations for necessary supplies, tools, and manpower.
Check to see if there are any field-installed options (refer to Table 5) that need to be assembled/installed prior to unit installation. Ensure that all options ordered are at the installation site.

Table 5. Field-Installed Options

Option| Description
IT13| Unit-mounted thermostat
CL31, CL32| Multiple fan control: option CL31 includes components for one control unit and one additional unit—option CL32 includes components for each additional non-control unit
CL1| Single-stage thermostat
CL22| Two-stage thermostat
CL90| BACnet-capable thermostat

Unit Suspension

⚠ WARNING ⚠

Before suspending the unit, check the supporting structure to verify that it has sufficient loadcarrying capacity to support the weight of the unit (refer to Weights section).
DO NOT add additional weight to a suspended unit .

NOTE: An accessory kit (PN 1042414) that contains hanger bracket assemblies, a Reznor logo, and hole plugs is shipped with the unit. Hangers and hardware are not factory-installed. Intall hole plugs if the Reznor logo is not used.
Suspend the unit using 3/8-inch field-supplied threaded rods (maximum length is 10 feet (3 meters)) and hex nuts. The rods are secured to two hanger brackets (see Figure 1) that are shipped with the unit in the accessory kit. The hanger brackets may be rotated to one of six positions in order to mount the unit at a desired angle.

If Reznor logo from accessory kit is desired, snap logo into two sets of holes located on front face of unit. If logo is not used, install hole plugs from accessory kit in holes.
Remove rubber cap from threaded stud on each side of unit and slide center hole of hanger brackets from accessory kit over studs—each stud acts as pivot when adjusting bracket angle. Install 5/16-inch hex nuts (see Figure 1) from accessory kit on studs to secure brackets.
Position hanger brackets to desired angle and secure each bracket using two 1/4-inch bolts (see Figure 1) from accessory kit installed in selected threaded holes in each bracket.
Install field-supplied hex nut on each field-supplied threaded rod about 6 inches from bottom of rod . Insert rod into top hole of each hanger bracket and install second and third field-supplied hex nuts.
Insert rod into bottom hole of each hanger bracket and install fourth field-supplied hex nut . Adjust rods/nuts for desired mounting height and tighten all hex nuts flush against brackets (see Figure 1).
Install threaded rods and hex nuts to unistrut, metal framing, or other structurally-sound attachment points to suspend unit. Ensure that load-bearing structure adequately supports weight of unit(s) and suspension hardware.

Electrical Connections

⚠ CAUTION ⚠
Ensure that all wiring is in accordance with the wiring diagram provided with the unit.

All electrical wiring and connections, including electrical grounding MUST be made in accordance with the National Electric Code ANSI/NFPA No . 70 (latest edition) or, in Canada, the Canadian Electric Code, Part 1 (CSA C .22 .1). In addition, the installer should be aware of any local ordinances that might apply.
Check the rating plate on the unit for the supply voltage and current requirements. The supply wiring enters as shown in Figure 2 and connects to pigtail leads from the disconnect switch (see Figure 2) and ground wire.
The terminal strip for 24V control connections is located on the outside of the control box at the back of the unit as shown in Figure 2. The strip has five terminals: C, R, G, W1, and W2 . The field-supplied ON/OFF switch connections are the R and G terminals and the thermostat connections are the C, R, and G terminals.

CONTROLS

Disconnect Switch
A disconnect toggle switch (see Figure 2) on the back of the unit turns the unit ON and OFF. During normal use, this switch is ON . Ensure that this switch is OFF before servicing the unit.
Thermostat and Field-Supplied ON/OFF Switch
The unit is controlled by a thermostat—either a field-installed optional thermostat (refer to Table 5) or a field-supplied 24V thermostat that must be installed in accordance with the thermostat manufacturer’s instructions. Pay particular attention to the requirements regarding the location of the thermostat. In accordance with the wiring diagram provided with the unit, connect the thermostat and/or the field-supplied ON/OFF switch at the 24V control wiring terminal strip on the back of the unit (refer to Electrical Connections section).
Multiple Fan Control
If the unit is ordered with the multiple fan control option, one thermostat can be used to control up to five fans. This option includes a 40VA transformer that replaces the standard transformer in the control unit and a relay assembly that connects to the additional fan(s). Option CL31 provides for control of two fans. If control of additional fans is desired (up to five total), option CL32, which is the relay assembly only, must be added to each additional fan. The option package ships separately and includes complete instructions for installation and wiring.

OPERATION

Pre-Startup Checklist
Check the following before startup:

Check suspension—unit must be secure and at desired angle .
Check electrical wiring—ensure that all wire gauges are as recommended—verify that fusing or circuit breakers are adequate for load use.
Check polarity—verify that line voltage exists between black L1 wire and earth ground.
Place literature bag that contains limited warranty form, this manual, and any control or optional information in accessible location near unit.

Startup
Startup the unit as follows:

Set thermostat to desired setting .
Turn ON electric power to unit .

MAINTENANCE

⚠ WARNING ⚠

Ensure that the disconnect switch is OFF before servicing the unit.
Eye protection is recommended when cleaning the unit.

⚠ CAUTION ⚠

When any service is completed, ensure that the unit is reassembled correctly so that no unsafe conditions are created.
If replacement parts are required, use only factory-authorized parts.

NOTE: To ensure long life and satisfactory performance, a unit that is operated under normal conditions should be inspected and cleaned at the start of each heating season . If the unit is operating in an area where an unusual amount of dust or soot or other impurities are present in the air, more frequent maintenance is recommended. The unit is designed to operate with a minimum of maintenance . However, to ensure long life and satisfactory performance, routine service is recommended. When servicing, follow standard safety procedures and the specific instructions and warnings in this manual .
Service Checklist
The following section is designed to aid a qualified service person in maintaining and servicing this equipment . At a minimum, perform the following annually:

Clean all dirt, lint, and grease from fan blade, fan guard, and motor.
Replace any parts that do not appear sound.
Check for any damaged wiring and replace as necessary.

Maintenance Procedures
Electrical Component Replacement
Use a voltmeter to verify that there is 24V output from the transformer. If the transformer is not functioning, it must be replaced. If it is determined that an electrical component needs replacing, use only the factory-authorized replacement part that is designed for the unit . Always replace the control box cover.
Fan and Motor Assembly Maintenance
Inspect and clean the motor, fan guard, and blades. Remove any dirt and grease. Take care when cleaning the fan blades to prevent misalignment or imbalance. Check to ensure that the fan blade hub is secure to the shaft. If necessary, replace the assembly as follows:

Turn OFF electric power to unit.
Remove access panel and disconnect fan motor wires, capacitor wires at capacitor, and ground screw.
Remove assembled parts (fan guard, motor, and fan blade).
Disassemble and replace part(s) as needed.
Reassemble using replacement part(s) as needed and original parts.
Ensure that fan is in proper position on shaft (see Figure 3) and that setscrew is tightened in accordance with torque listed in Table 6.
Figure 3 . Fan and Motor Spacing (Refer to Table 6)
Position assembly on unit and secure fan guard.
Rotate fan blade to check for adequate clearance. If adjustment is required, loosen mounting screws, reposition fan guard, and tighten screws to 30 inch-pounds. Repeat until assembly is positioned properly.
Reconnect fan motor wires in accordance with wiring diagram.
Install access panel.
Turn ON electric power to unit and check for proper operation.

MAINTENANCE—CONTINUED
Maintenance Procedures—Continued
Fan and Motor Assembly Maintenance—Continued

Table 6. Fan Blade-to-Motor Spacing

Model| Dimension A ( Inches (mm))| Setscrew Torque (Inch-Pounds ±10)
H25| 1-1/16 (26.9875)| 80
H35| 1-1/2 (38.1)
H50, H60| 2-3/8 (60.325)| 120
See Figure 3.

TROUBLESHOOTING

Table 7. Troubleshooting

Symptom| Probable Cause| Remedy
Unit will not start| 1. No power to unit| Turn ON power and check supply fuses or circuit breaker
2. No 24V power to thermostat| Turn up thermostat
Check control transformer output
3. No power to fan motor| Tighten connections at motor terminals
4. Defective fan motor| Replace fan motor
5. Improper thermostat location or adjustment| Refer to thermostat manufacturer’s instructions
Fan motor will not run| 1. Circuit open| Check wiring and connections
2. Incorrect polarity| Reverse line volt leads to fan motor
3. Defective fan motor| Replace fan motor
Fan motor cuts out on overload| 1. Low or high voltage supply| Correct electric supply
2. Defective fan motor| Replace fan motor
3. Poor airflow| Clean motor, fan, and fan guard

Specifications and illustrations subject to change without notice or incurring obligations .
Latest version of this manual is available at www.reznorhvac.com.

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H-IOM (01-23) 1042427-0