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8

Energy Core Ventilator

®

Electrical Connections

Before connecting power to the unit, read and 
understand the following instructions and wiring 
diagrams. Complete wiring diagrams are attached inside 
the blower door of the unit.
All wiring should be done in accordance with the 
National Electrical Code ANSI/NFPA 70 latest edition 
and any local codes that may apply. In Canada, 
wiring should be done in accordance with the 
Canadian Electrical Code. The equipment must be 
properly grounded.

 

A

 

B

Electrical

Connection

Core, Filter, and

Blower Access

Sequence for Wiring Unit

  1.  The unit’s nameplate contains the voltage and total 

amperage required. The wire supplying power to 
the unit should be sized accordingly.

  2.  The main power line should be connected to the 

appropriate terminal blocks.

    Power may be routed to the unit through the 

opening on the underside of the unit. The locations 
for the opening are provided in the figure to 
the right.

  3.  Refer to the wiring diagrams in this manual or in the 

unit for controlling the unit. 

Electrical Connection Location

MiniCore

A

B

5/10

1

20.6

5/10 with disconnect

2.4

25.5

All dimensions are in inches.

CAUTION

If any of the original wire must be replaced, the 
replacement wire must have a temperature rating of at 
least 105ºC.

DANGER

High voltage electrical input is required for this 
equipment. This work should be performed by a 
qualified electrician.

Frost Control

Extremely cold outdoor air temperatures can cause 
moisture condensation and frosting on the energy 
recovery core. Frost control is an optional feature that 
will prevent/control core frosting.
 

1. Timed exhaust frost control

This option is provided with a thermodisc mounted in 
the outdoor air intake compartment. 

Timed exhaust frost control

 includes a timer in 

addition to the thermodisc. When timed exhaust frost 
control is initiated, the timer will turn the supply blower 
off. Time exhaust using default timer setting will shut 
down the supply fan for 5 minutes every 30 minutes 
to allow exhaust to defrost energy core. Use the test 
procedure for troubleshooting.

Frost Control Test Procedure

1. Remove power from unit.
2. Jumper the temperature indicating thermodisc in 

the unit control center. Thermodisc has a pre-set 
temperature of 5ºF. 

3. Set the frost control timer scale for T1 and T2 to 1m. 

Set the timer settings for T1 and T2 to 10.

4. Add power to the unit. Blower should cycle on for one 

minute, then turn off for one minute.

5. Remove power from unit and remove jumpers that 

were placed. Re-set timer settings.

  •   T1

 timer setting set to 

5

 and timer scale set to 

10m

 

for 5 minutes of wheel off time.

  •   T2

 timer setting set to 

5

 and timer scale set to  

1h

 for 30 minutes of wheel on time

Timer  

Scale

Timer  

Scale

Timer  

Settings

T1

T2

Содержание ECV

Страница 1: ... applicable Follow the Canadian Electrical 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...

Страница 2: ...ergy recovery core The preconditioned air is typically mixed with return air going back to the air handler for final conditioning Table of Contents General Safety Information 1 Unit Overview 2 Receiving Handling Storage 3 Dimensional Data and Weights 4 Service Clearances and Access Panel Locations 4 Intake and Discharge Locations 5 Installation 6 Electrical Connections 8 Wiring Schematics 9 System...

Страница 3: ...ent condensation Remove any accumulations of dirt water ice or snow and wipe dry before moving to indoor storage To avoid condensation allow cold parts to reach room temperature Leave coverings loose to permit air circulation and to allow for periodic inspection The unit should be stored at least 3 in 89 mm off the floor Clearance should be provided to permit air circulation and space for inspecti...

Страница 4: ...ecome necessary If the MiniCore unit is to be mounted on its side Reference the Mounting Options sections of this IOM then service clearance should be on the electrical input side Access Panel Locations Outdoor and exhaust fans and motor Electrical connection Energy core and internal filters Energy Core and Filter Access Panel Service Clearance Electrical Access Panel Energy Core and Filter Access...

Страница 5: ...ic plugs in the holes where the bolts were removed from in Step 6 Step 8 Position the blowers to line up with the desired discharge location The motor needs to be on the discharge end of the blower and unit If the motor is positioned on the return side of the blower unit the motor blower will interfere with the energy recovery core The blower adjacent to the control center needs to be rotated 90 T...

Страница 6: ...nging Vibration Isolator Assembly Side Discharge End Installation IMPORTANT The MiniCore unit can be hung in any orientation The installation contractor is responsible for safely mounting the unit to provide appropriate removal or access to the panels and unit components The system design and installation should follow accepted industry practices such as described in the ASHRAE Handbook and SMACNA...

Страница 7: ... Fan Wheel Dia 1 Fan Wheel Dia R o tation R o tation Length of Straight Duct GOOD POOR GOOD POOR GOOD POOR Turning 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 2 0 0 STATIC PRESSURE LOSS CURVE 1 CURVE 2 CURVE 3 CURVE 4 Ductwork Connections Examples of poor and good fan to duct connections are shown Airflow out of the fan should be di...

Страница 8: ...DANGER High voltage electrical input is required for this equipment This work should be performed by a qualified electrician Frost Control Extremely cold outdoor air temperatures can cause moisture condensation and frosting on the energy recovery core Frost control is an optional feature that will prevent control core frosting 1 Timed exhaust frost control This option is provided with a thermodisc...

Страница 9: ...DC SEE NOTE 2 BLACK BLACK WHITE POT A SEE NOTE 1 BLACK RED RED CLOSED 115 120V OPEN 208 230 277 2CBL MA 2CBL MA L2 L1 MB B B BLOWER MOTOR B ORANGE RED BLACK 0 10VDC SEE NOTE 2 BLACK BLACK WHITE POT B SEE NOTE 1 BLACK RED RED CLOSED 115 120V OPEN 208 230 277 2CBL MB 2CBL MB B SEE NOTE 3 A SEE NOTE 3 VERIFY BLOWER MOTOR VOLTAGE MATCHES LINE VOLTAGE 110 120V 50 60HZ 208 230 277V 50 60HZ NOTE 1 Potent...

Страница 10: ...l No ___________________________________ Unit Serial No _____________________________________ Start Up Date ____________________________________ Start Up Personnel Name __________________________ Start Up Company_________________________________ Phone Number____________________________________ Pre Start Up Checklist o Disconnect and lock out all power switches o Remove any foreign objects that are...

Страница 11: ...ed and compared with its rated air volume The unit is directly driven therefore balancing dampers or speed controls are required for airflow balancing Air volume measurement must be conducted with access doors on the unit The most accurate way to measure the air volume is by using the pitot traverse method in the ductwork away from the blower Other methods can be used but should be proven and accu...

Страница 12: ...e detergents and cleaners on the core This will result in a damaged core WARNING Disconnect all electrical power to the MiniCore prior to inspection or servicing Failure to comply with this safety precaution could result in serious injury or death Improper installation adjustment alteration service or maintenance can cause property damage injury or death Read the installation operating and mainten...

Страница 13: ...e motor will still not rotate the motor will not attempt to start again until power is cycled Thermal Protection The motors will have an internal thermal protection which electronically regulates the RPM limit until an acceptable temperature is met Operation and Wiring These motors have the ability to accept a plug in potentiometer for speed adjustment AND the ability to accept a 0 10V signal for ...

Страница 14: ...ings Tighten collars and fasteners Wheel out of balance Clean replace or rebalance Low airflow cfm Fan speed too low Increase fan speed Dirty filters or energy core Replace filters and or follow the cleaning procedures High static pressure Incorrect fan to duct connections Make sure dampers open appropriately Increase fan speed High airflow cfm Fan speed too high Decrease fan speed Low static pres...

Страница 15: ..._____________________ _________________________________________________ _________________________________________________ Date____________________Time______________ AM PM Notes ____________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ ____________________________...

Страница 16: ...al Fans provides additional safety information This publication can be obtained from AMCA International Inc at www amca org Phone 715 359 6171 Fax 715 355 2399 Parts 800 355 5354 E mail gfcinfo greenheck com Website www greenheck com As a result of our commitment to continuous improvement Greenheck reserves the right to change specifications without notice Product warranties can be found online at...

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