Instruction/ maintenance manual of the product ERVe Greenheck Fan
Go to page of 32
1 Model ERV e Energy Recovery Unit ® Installation, Operation and Maintenance Manual Please read and save these instructions. Read car efully before attempting to assemble, install, operate or maintain the product described. Pr otect yourself and others by observing all safety information.
2 Model ERV e Energy Recovery Unit Machined parts coated with rust preventive should be restor ed to good condition promptly if signs of rust occur . Immediately r emove the original rust preventive coating with petr oleum solvent and clean with lint-free cloths.
3 Model ERV e Energy Recovery Unit T able of Contents Basic Op eration . . . . . . . . . . . . . . 3 Inst allation Supplementa l Installation, Oper ation and Maint enan ce Man uals . . . . . . . . . . . 3 Installation Concerns . . . . . . . . . . . . 3 Lif ting with a Crane / Forklift .
4 Model ERV e Energy Recovery Unit Lifting with a Crane 1. Before lifting, be sur e that all shipping material has been removed fr om unit. 2. T o assist in determining rigging requirements, weights are shown below . 3. Unit must be lifted by all corner lifting points provided on base structur e.
5 Model ERV e Energy Recovery Unit 1 Fan Wheel Dia. 1 Fan Wheel Dia. R o t a t i o n R o t a t i o n R o t a t i o n R o t a t i o n Length of Straight Duct GOOD POOR GOOD POOR GOOD POOR Tu rning Vanes Tu rning Vanes SYSTEM EFFECT F ACTOR CURVES FPM X 100 OUTLET VELOCITY 0 5 10 15 20 25 30 35 40 45 1.
6 Model ERV e Energy Recovery Unit Unit Size A B ERVE-20 5.75 18 ERVE-35 5.75 20.5 ERVE-45 6 22.5 ERVE-55 6 26 A B Isometric view of ERVe on rails Side view of ERVe on rails Unit Size A B ERVE-20 5.75 18 ERVE-35 5.75 20.5 ERVE-45 6 22.5 ERVE-55 6 26 A B Unit Size A B ERV e-20 5.
7 Model ERV e Energy Recovery Unit Dimensional Data Electrical Box 2-inch Filters 2-inch Filters Energy Wheel D A B E Outdoor Air Weatherhood Exhaust Air Weatherhood D CLEARANCE CLEARANCE CLEARANCE CL.
8 Model ERV e Energy Recovery Unit Electrical Information The unit must be electrically grounded in accor dance with the current National Electrical Code, ANSI/NFP A 70.
9 Model ERV e Energy Recovery Unit T ypical Control Center Components 1. Main Disconnect (non-fusible, lockable) 2. Motor Starter – Exhaust Air Fan 3. Motor Starter – Outdoor Air Fan 4. Motor Contactor – Energy Wheel 5. 24 V AC Control T ransformer 6.
10 Model ERV e Energy Recovery Unit Unit Accessories Outdoor Air W eatherhood Outdoor air weatherhood will be factory mounted. Exhaust W eatherhood The exhaust weatherhood is shipped separately as a kit with its own instructions. Dampers Backdraft dampers are always included as an integral part of the exhaust hood assemblies.
11 Model ERV e Energy Recovery Unit • After testing, set the Timer Scale as follows: T1 = 10 minutes, T2 = 1 hour • Set the Timer Settings as follows: T1 = 0.5, T2 = 0.5 The timer is now set for 5 minutes off and 30 minutes on.
12 Model ERV e Energy Recovery Unit Economizer Application/Operation The energy recovery wheel operation can be alter ed to take advantage of economizer operation (free cooling). T wo modes are available: 1. De-energizing the wheel 2. Modulating the wheel A field supplied call for cool (Y1) is requir ed.
13 Model ERV e Energy Recovery Unit Factory Set Points V ariable Frequency Drives (VFDs) for the blowers are factory setup to operate in one of the three following modes: Modulating: 0-10 VDC signal w.
14 Model ERV e Energy Recovery Unit Parameter Setting –J1000 A1-01 Access Level 2 b1-17 VFD Auto Start 1 C6-02 Carrier Frequency 2 d2-01 Ref Upper Limit 40% or 50%* d2-02 Ref Lower Limit 5% E2.
15 Model ERV e Energy Recovery Unit FA CTORY SUPPLIED AND WIRED G MUL TI-VOL TA GE PRIMARY 24 SECONDARY TR1 C FU5 TO UNIT MAIN POWER L3 L2 L1 DS1 SUPPL Y DAMPER D2 ENERGY WHEEL R1 R TR1 SO SR 3 FR FC .
16 Model ERV e Energy Recovery Unit Rotation Sensor The rotation sensor monitors energy r ecovery wheel rotation. If the wheel should stop r otating, the sensor will close a set of contacts in the unit control center .
17 Model ERV e Energy Recovery Unit Remote Control Panel and W iring Schematics Indicator Lights powered by the ER Unit Dirty Filter Indicator (power by others) Refer to Pressure Switch for voltage and load ratings.
18 Model ERV e Energy Recovery Unit T emperature Sensors - 1K Ohm RTD Drawing Labels T erminal Strip Labels OAI OA/Supply Inlet T emp OAAW OA After Wheel RAI RA/Exhaust Inlet T emp OAD Supply Discharg.
19 Model ERV e Energy Recovery Unit Start-Up o Rotate the fan wheels and energy recovery wheels by hand and ensure no parts ar e rubbing. If rubbing occurs, refer to Start-Up section for mor e information. o Check the fan belt drives for proper alignment and tension (refer to Start-Up section for mor e information).
20 Model ERV e Energy Recovery Unit Provided with Unit? Frost Contr ol Application / Operation section: Setting Factory Default Ye s No Frost Contr ol set point 5ºF Differ ential 2ºF Timer Refer to .
21 Model ERV e Energy Recovery Unit Unit Start-Up Refer to Parts List section for component locations. Fans The ERV e models contain two forward curved (supply & exhaust) fans. These forward curved fans should be checked for free r otation. If any binding occurs, check for concealed damage and foreign objects in the fan housing.
22 Model ERV e Energy Recovery Unit Vibration Excessive vibration may be experienced during initial start-up. Left unchecked, excessive vibration can cause a multitude of problems, including structural and/or component failure. The most common sour ces of vibration are listed.
23 Model ERV e Energy Recovery Unit Dampers Check all dampers to ensure they open and close properly and without binding. Backdraft dampers can be checked by hand to determine if blades open and close freely . Apply power to motorized dampers to ensure the actuator opens and closes the damper as designed.
24 Model ERV e Energy Recovery Unit Fan Wheel & Fasteners Wheels requir e very little attention when moving clean air . Occasionally oil and dust may accumulate on the wheel causing imbalance. When this occurs the wheel and housing should be cleaned to assure smooth and safe operation.
25 Model ERV e Energy Recovery Unit Accessing the Energy Recovery Wheel Disconnect power to the ERV e. Open door labeled “Energy Wheel Cassette Access”. Unplug the wheel drive motor . Pull the wheel cassette halfway out. Energy Recovery Wheel Maintenance Annual inspection of the energy recovery wheel is recommended.
26 Model ERV e Energy Recovery Unit Parts List 1. Supply blower • Forwardcurved fan • Adjustable motor mount for belt tensioning • Adjustable sheaves for speed control Not depicted on this image 2.
27 Model ERV e Energy Recovery Unit T roubleshooting – Airflow T est and Balance Report The T est and Balance Report (T AB) is utilized to determine whether the appropriate amount of outdoor air and exhaust air is being supplied and removed fr om a building, respectively .
28 Model ERV e Energy Recovery Unit Always have a completed Pre Start-Up Checklist, unit Start-Up Checklist, and Optional Accessories Checklist prior to requesting parts or service information. Symptom Possible Cause Corrective Action Blower fails to operate Blown fuse or open circuit br eaker .
29 Model ERV e Energy Recovery Unit T roubleshooting – Unit Always have a completed Pre Start-Up Checklist, unit Start-Up Checklist, and Optional Accessories Checklist prior to requesting parts or service information.
30 Model ERV e Energy Recovery Unit Maintenance Log Date __________________ Time _____________ AM/PM Notes:___________________________________________ _________________________________________________.
31 Model ERV e Energy Recovery Unit Maintenance Log Date __________________ Time _____________ AM/PM Notes:___________________________________________ _________________________________________________.
32 Greenheck warrants this equipment to be fr ee from defects in material and workmanship for a period of one year fr om the shipment date. The energy recovery wheel is warranted to be fr ee from defects in material and workmanship for a period of five years from the shipment date.
An important point after buying a device Greenheck Fan ERVe (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Greenheck Fan ERVe yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Greenheck Fan ERVe - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Greenheck Fan ERVe you will learn all the available features of the product, as well as information on its operation. The information that you get Greenheck Fan ERVe will certainly help you make a decision on the purchase.
If you already are a holder of Greenheck Fan ERVe, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Greenheck Fan ERVe.
However, one of the most important roles played by the user manual is to help in solving problems with Greenheck Fan ERVe. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Greenheck Fan ERVe along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
