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Model PV

e

 Heat Recovery Unit

®

Installation, Operation and Maintenance Manual

Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the 
product described. Protect yourself and others by observing all safety information. Failure to comply with instructions 
could result in personal injury and/or property damage! Retain instructions for future reference.

Part #472846

Heat Recovery Ventilators

Only qualified personnel should install this system. 
Personnel should have a clear understanding of these 
instructions and should be aware of general safety 
precautions. Improper installation can result in electric 
shock, possible injury due to coming in contact with 
moving parts, as well as other potential hazards. 
Other considerations may be required if high winds 
or seismic activity are present. If more information 
is needed, contact a licensed professional engineer 
before moving forward.

1.  Follow all local electrical and safety codes, as well 

as the National Electrical Code (NEC), the National 
Fire Protection Agency (NFPA), where applicable. 
Follow the Canadian Electric Code (CEC) in 
Canada.

2.  All moving parts must be free to rotate without 

striking or rubbing any stationary objects.

3.  Unit must be securely and adequately grounded.
4.  Do not spin fan wheel faster than maximum 

cataloged fan RPM. Adjustments to fan speed 
significantly affects motor load. If the fan RPM is 
changed, the motor current should be checked to 
make sure it is not exceeding the motor nameplate 
amps.

5.  Do not allow the power cable to kink or come in 

contact with oil, grease, hot surfaces or chemicals. 
Replace cord immediately if damaged.

6.  Verify that the power source is compatible with the 

equipment.

7.  Never open access doors to the unit while it is 

running.

General Safety Information

DANGER

Always disconnect power before working on or near 
this equipment. Lock and tag the disconnect switch 
or breaker to prevent accidental power up.

CAUTION

When servicing the unit, the internal components 
may be hot enough to cause pain or injury. Allow 
time for cooling before servicing.

CAUTION

Precaution should be taken in explosive 
atmospheres.

Models:  PV

e

-20

 

PV

e

-35

 

PV

e

-45

 

PV

e

-55

Summary of Contents for PVE-20

Page 1: ...as the National Electrical Code NEC the National Fire Protection Agency NFPA where applicable Follow the Canadian Electric Code CEC in Canada 2 All moving parts must be free to rotate without striking...

Page 2: ...rect quantity of each item have been received If any items are missing report shortages to your local representative to arrange for obtaining missing parts Sometimes it is not possible that all items...

Page 3: ...t exchanger transfers energy from the exhaust air to the incoming outdoor air When used in the cooling mode heat energy is transferred from incoming outdoor air to the exhaust air Simply put this unit...

Page 4: ...check should be made to ensure that the unit has been installed level by using the bottom of the cabinet as a reference not the top the cabinet roof is sloped to the rear Ensure that all ductwork has...

Page 5: ...920 36 920 60 1530 PVe 45 60 1530 36 920 36 920 60 1530 PVe 55 72 1830 36 920 36 920 60 1530 All dimensions are shown in inches millimeters The weatherhoods include 2 inch aluminum mesh filters that a...

Page 6: ...5 PVe 35 99 4 44 6 216 PVe 45 105 9 56 3 261 PVe 55 111 7 71 3 316 All dimensions are shown in inches Curb Cap Details for Factory Supplied Roof Curbs Ductwork Connections Examples of poor and good fa...

Page 7: ...clearance for installation of water drain traps Rails should be designed to handle the weight of the PVe unit taking into consideration weight per square inch on bearing surfaces Rails should be posi...

Page 8: ...outdoor air from being pulled into the cabinet and consequently causing overfilling of the drain pans or misting of PVe components To ensure the drain trap works properly the trap height must account...

Page 9: ...Measure and record each supply leg voltage at all line disconnect switches Readings must fall within the allowable range on the rating plate Voltage Imbalance In a 3 phase system excessive voltage im...

Page 10: ...er warms the outdoor air prior to being drawn through the PVe plate heat exchanger Electric heaters are available in 208 230 or 460 VAC Refer to heater nameplate for voltage rating Preheaters If an op...

Page 11: ...frost control is only initiated during a real frost condition Field wiring of a light or other alarm between 6 C in the control center will notify personnel when unit is in frost control mode refer to...

Page 12: ...ting or multispeed control of the blowers One VFD is provided for each blower supply air and exhaust The VFD s provided are either Yaskawa model V1000 or J1000 Refer to the tables in this section for...

Page 13: ...otor FLA Motor FLA H1 04 Multfunction Input Sel 4 Terminal S4 3 3 H1 05 Multifunction Input Sel 5 Terminal S5 4 4 H1 06 Multifunction Input Sel 6 Terminal S6 5 NA H3 10 A2 Not Used F NA A1 01 Access L...

Page 14: ...led wiring diagram located within the control panel This diagram illustrates typical factory wiring and also illustrates circuits that must be field wired Included with this drawing are 1 variable fre...

Page 15: ...wer goes off Open the filter compartment and remove the obstructing material Replace the door and check to make sure that you do not have power at the alert signal leads The unit is now ready for oper...

Page 16: ...remote panel is a series of junction boxes ganged together and includes a stainless steel faceplate The remote panel is available with a number of different alarm lights and switches to control the u...

Page 17: ...abels Terminal Strip Labels EF A Exhaust Fan Amps OAF A Supply Fan Amps Sensors Mounted by Factory Factory mounted temperature pressure and current sensors are available in the locations indicated on...

Page 18: ...ber ________________________________ Pre Start Up Checklist check as items are completed o Disconnect and lock out all power switches o Remove any foreign objects that are located in the energy recove...

Page 19: ...o OA Dirty Filter Sensor Yes No N A Yes No EA Dirty Filter Sensor Yes No N A Yes No CO2 Sensor Yes No N A Yes No Service Outlet Yes No N A Yes No Vapor Tight Lights Yes No N A Yes No Remote Control Pa...

Page 20: ...cessary belt wear noise vibration and power loss Motor and drive shafts must be parallel and pulleys in line see diagrams in this section Belt Drive Installation 1 Remove the protective coating from t...

Page 21: ...rrective actions If observation cannot locate the source of vibration a qualified technician using vibration analysis equipment should be consulted If the problem is wheel unbalance in place balancing...

Page 22: ...are various optional motorized dampers and sensors that may also be found in the unit The heart of the PVe unit is the Plate Heat Exchanger and this is the component that actually accomplishes heat e...

Page 23: ...assists proper motor cooling Never wash down motor with high pressure spray Greasing of motors is only intended when fittings are provided Many fractional motors are permanently lubricated for life a...

Page 24: ...requency of cleaning depends upon the cleanliness of the incoming air These filters should be cleaned prior to start up Clean filters by rinsing with a mild detergent in warm water Internal Filter Mai...

Page 25: ...ture is decreased by the transfer of energy from the cooler drier exhaust air via the aluminum heat exchanger The preconditioned air is typically mixed with return air going back to the air handler fo...

Page 26: ...low prior to contacting the factory please determine the following information Airflow problems can often be tied back to improper ductwork installation Be sure to install ductwork in accordance with...

Page 27: ...ed Static pressures are higher or lower than design If higher ductwork should be improved If lower fan rpm should be lower Blower rotation is incorrect Check rotation and reverse if necessary Motor vo...

Page 28: ...haft Bearings Replace defective bearing s Lubricate bearings Tighten collars and fasteners Wheel out of balance Replace or rebalance Loose wheel on shaft Tighten wheel setscrew Loose motor or blower s...

Page 29: ..._______________________ _________________________________________________ _________________________________________________ Date___________________ Time______________ AM PM Notes _____________________...

Page 30: ..._______________________ _________________________________________________ _________________________________________________ Date___________________ Time______________ AM PM Notes _____________________...

Page 31: ..._______________________ _________________________________________________ _________________________________________________ Date___________________ Time______________ AM PM Notes _____________________...

Page 32: ...nsible for any removal or installation costs As a result of our commitment to continuous improvement Greenheck reserves the right to change specifications without notice Phone 715 359 6171 Fax 715 355...

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