Greenheck ERVe - Manuals - manualsarea.com

Page 2 - Receiving

2 Model ERV e Energy Recovery Unit Machined parts coated with rust preventive should be restored to good condition promptly if signs of rust occur. Immediately remove the original rust preventive coating with petroleum solvent and clean with lint-free cloths. Polish any remaining rust from surface w...

Page 3 - Supplemental Installation, Operation and

3 Model ERV e Energy Recovery Unit Table of Contents Basic Operation . . . . . . . . . . . . . . 3 Installation Supplemental Installation, Operation and Maintenance Manuals . . . . . . . . . . . 3 Installation Concerns. . . . . . . . . . . . 3 Lifting with a Crane / Forklift. . . . . . . . . 4 Roof ...

Page 4 - Lifting with a Crane; Unit Size; All dimensions are in inches.; Lifting with a Forklift; Roof Curb and Rail Mounting

4 Model ERV e Energy Recovery Unit Lifting with a Crane 1. Before lifting, be sure that all shipping material has been removed from unit. 2. To assist in determining rigging requirements, weights are shown below. 3. Unit must be lifted by all corner lifting points provided on base structure. 4. Rigg...

Page 5 - Roof Curb Mounting; All dimensions are in inches. Weights are for 14-inch high; Curb Outside Dimensions and Weights; Curb Cap Details for Factory Supplied Roof Curbs; Curb Outside Dimensions -; continued; Ductwork Connections

5 Model ERV e Energy Recovery Unit 1 Fan Wheel Dia. 1 Fan Wheel Dia. Rota tio n Rota tio n R ot ation R ot ation Length of Straight Duct GOOD POOR GOOD POOR GOOD POOR Tu rning Vanes Tu rning Vanes SYSTEM EFFECT FACTOR CURVES FPM X 100 OUTLET VELOCITY 0 5 10 15 20 25 30 35 40 45 1.2 1.0 0.8 0.6 0.4 0...

Page 6 - Isometric view of; Rail Mounting / Layout; • Rails designed to handle the weight of the ERVe; Recommended Service Clearances; Access Panel Description and; Supply blower and motor; Service Clearances

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 ERVe-20 5.75 18 ERVe-35 5.75 20....

Page 7 - Dimensional Data

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 CLEARANCE C Electrical Box 2-inch Filters 2-inch Filters Energy Wheel Exhaust Air Weatherhood E Outdoo...

Page 8 - Electrical Information; See voltage use range on the rating; Field Control Wiring Length/Gauge; Total

8 Model ERV e Energy Recovery Unit Electrical Information The unit must be electrically grounded in accordance with the current National Electrical Code, ANSI/NFPA 70. In Canada, use current CSA Standard C22.1, Canadian Electrical Code, Part 1. In addition, the installer should be aware of any local...

Page 9 - Typical Control Center Components; Exploded Detail; Access to Control Center Components; Electric Heater Application/Operation; Preheaters are standard as single-stage

9 Model ERV e Energy Recovery Unit Typical 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 VAC Control Transformer 6. 24 VAC Terminal strip 7. Fuses for blower motors 1 ...

Page 10 - Unit Accessories; Outdoor Air Weatherhood; (bottom return air intake; wheel for more working area inside the unit.; Shipping Location

10 Model ERV e Energy Recovery Unit Unit Accessories Outdoor Air Weatherhood Outdoor air weatherhood will be factory mounted. Exhaust Weatherhood 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...

Page 11 - Electric preheat frost control; Frost Control Application/Operation; AND; Frost Threshold Temperatures; Optional Accessories

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. Remember to remove the jumper. Electric preheat frost control includes a...

Page 12 - Economizer Application/Operation; Temperature Sensor with Override; wheel should start rotating.; Enthalpy Sensor with Override; Enthalpy Sensor to terminal SO.; Sequence of Operation:; The variable frequency; ) is the outdoor air temperature set point,; is the supply air discharge thermostat set point.; Wheel runs at full speed.

12 Model ERV e Energy Recovery Unit Economizer Application/Operation The energy recovery wheel operation can be altered to take advantage of economizer operation (free cooling). Two modes are available: 1. De-energizing the wheel 2. Modulating the wheelA field supplied call for cool (Y1) is required...

Page 13 - Factory Set Points; • SC to S4 - Drive runs at 40Hz; Variable Frequency Drives for Energy Recovery Blowers; FOR ONE 0-10 SIGNAL, WIRE TO DRIVES IN PARALLEL; SC; SEE VFD INSTALLATION MANUAL FOR MORE DETAIL

13 Model ERV e Energy Recovery Unit Factory Set Points Variable Frequency Drives (VFDs) for the blowers are factory setup to operate in one of the three following modes: Modulating: 0-10 VDC signal wired in the field by others varies the speed of the blower between 30 and 60Hz Multispeed: Digital co...

Page 14 - Setting; MODULATING CONTROL FOR FAN SPEED; Factory Set Points -; Resetting the V1000 drive to factory defaults

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% E2-01 Motor Rated FLA Motor FLA E2-03 Motor No-Load Current Must be less than FLA H1-02 Multi-Function Input ...

Page 15 - Typical Wiring Diagram

15 Model ERV e Energy Recovery Unit FACTORY SUPPLIED AND WIRED G MULTI-VOLTAGE PRIMARY 24 SECONDARY TR1 C FU5 TO UNIT MAIN POWER L3 L2 L1 DS1 SUPPLY DAMPER D2 ENERGY WHEEL R1 R TR1 SO SR 3 FR FC 2-10V - + 1 TR 5 4 2 SR+ RETURN AIR SENSOR MIXED AIR SENSOR T T1 620 OHM RESISTOR OR OUTDOOR AIR SENSOR S...

Page 16 - levels

16 Model ERV e Energy Recovery Unit Rotation Sensor The rotation sensor monitors energy recovery wheel rotation. If the wheel should stop rotating, the sensor will close a set of contacts in the unit control center. Field wiring of a light (or other alarm) between terminals R & 12 in the unit co...

Page 17 - Indicator Lights powered by the ER Unit; Refer to Pressure Switch for voltage and load ratings.; “On” - Manual Operation

17 Model ERV e Energy Recovery Unit Remote Control Panel and Wiring Schematics Indicator Lights powered by the ER Unit Dirty Filter Indicator (power by others) Refer to Pressure Switch for voltage and load ratings. 7-Day Timer or On/Off Switch G C R 7-Day Timer S1 - Unit On/Off Terminal Block in Uni...

Page 18 - Temperature Sensors - 1K Ohm RTD; Sensors Mounted by Factory; ENERGY WHEEL

18 Model ERV e Energy Recovery Unit Temperature Sensors - 1K Ohm RTD Drawing Labels Terminal Strip Labels OAI OA/Supply Inlet Temp OAAW OA After Wheel RAI RA/Exhaust Inlet Temp OAD Supply Discharge Temp EAW Exhaust After Wheel Temp Pressure Sensors (analog or digital) Drawing Labels Terminal Strip L...

Page 19 - General Start-Up Information; check as items are; DANGER

19 Model ERV e Energy Recovery Unit Start-Up o Rotate the fan wheels and energy recovery wheels by hand and ensure no parts are rubbing. If rubbing occurs, refer to Start-Up section for more information. o Check the fan belt drives for proper alignment and tension (refer to Start-Up section for more...

Page 20 - Optional Accessories Checklist

20 Model ERV e Energy Recovery Unit Provided with Unit? Frost Control Application / Operation section: Setting Factory Default Yes No Frost Control set point 5ºF Differential 2ºF Timer Refer to IOM Yes No Frost Control Modulating Refer to IOM Economizer Application / Operation section: Yes No Econom...

Page 21 - CAUTION; Forward Curved

21 Model ERV e Energy Recovery Unit Unit Start-Up Refer to Parts List section for component locations. Fans The ERVe models contain two forward curved (supply & exhaust) fans. These forward curved fans should be checked for free rotation. If any binding occurs, check for concealed damage and for...

Page 22 - Vibration; Energy Recovery Wheel; Inside layout of ERVe

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 sources of vibration are listed.Many of these conditions...

Page 23 - Dampers; Fan Motors; Routine Maintenance; Maintenance Procedures:; Lubrication

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 desi...

Page 24 - Fan Wheel & Fasteners; Bearings; Access to the outdoor air filters; Door Seal Maintenance

24 Model ERV e Energy Recovery Unit Fan Wheel & Fasteners Wheels require 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. Inspect fan...

Page 25 - Accessing the Energy Recovery Wheel; Energy Recovery Wheel Maintenance; Wheel segment removed; Place retainers back in the original; not recommended; Energy Recovery Wheel Belt

25 Model ERV e Energy Recovery Unit Accessing the Energy Recovery Wheel Disconnect power to the ERVe. 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...

Page 26 - Parts List; Not depicted on this image; Sequence of Operation; Basic Unit; Economizer Operation:; Winter Operation; Frost Control Operation:

26 Model ERV e Energy Recovery Unit Parts List 1. Supply blower • Forward curved fan • Adjustable motor mount for belt tensioning • Adjustable sheaves for speed control Not depicted on this image 2. Vibrations isolators (quantity 4 per blower) • Neoprene 3. Energy recovery wheel cassette 4. Removabl...

Page 27 - Troubleshooting – Airflow; Test and Balance Report

27 Model ERV e Energy Recovery Unit Troubleshooting – Airflow Test and Balance Report The Test and Balance Report (TAB) is utilized to determine whether the appropriate amount of outdoor air and exhaust air is being supplied and removed from a building, respectively. There are no set rules on what i...

Page 28 - Symptom; Troubleshooting – Unit

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 breaker. Repla...

Page 30 - Maintenance Log

30 Model ERV e Energy Recovery Unit Maintenance Log Date __________________ Time _____________ AM/PMNotes:__________________________________________________________________________________________________________________________________________________________________________________________________...

Page 32 - Warranty

32 Greenheck warrants this equipment to be free from defects in material and workmanship for a period of one year from the shipment date. The energy recovery wheel is warranted to be free from defects in material and workmanship for a period of five years from the shipment date. Any units or parts w...