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9

MiniCore

General

Check all fasteners and set screws for tightness. This is 
especially important for bearings and fan wheels Also, 
if dampers are not motorized, check that they open and 
close without binding.

Check Voltage

Before starting the unit compare the supplied voltage 
with the unit’s nameplate voltage and the motor voltage.

Check Blower Wheel Rotation

First, hand rotate the 
blower to ensure that 
the wheel is not rubbing 
against the scroll. If the 
blower is rotating in the 
wrong direction, the unit 
will move some air but not 
perform properly.

To check the rotation, open the blower access panel, 
and run the blower momentarily to determine the 
rotation.

Air Volume Check and Measurement

Along with the building balance, the unit’s airflow (cfm) 
should be measured and compared with its rated air 
volume. The MiniCore is direct drive, 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 accurate.

To adjust the air volume, change the fan rpm or the 
system static pressure.

With all access panels on the unit, compare measured 
amps to the motor nameplate full load amps and correct 
if overamping.

Measure Motor Voltage, Amperage and 
Fan RPM

All access doors must be installed, run the 
measurement leads through the provided electrical 
access hole in the bottom access panel of the MiniCore. 
Measure and record the input voltage and motor 
amperage(s).

With all access panels on the unit, compare measured 
amps to the motor nameplate full load amps and correct 
if overamping.

Airflow

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Forward Curved

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 
maintenance instructions thoroughly before installing 
or servicing this equipment.

After the MiniCore has been put into operation, an 
annual inspection and maintenance program should be 
set-up to preserve reliability and performance.

The MiniCore energy recovery ventilator requires 
very little maintenance. However, small problems 
left unchecked, over time, could lead to loss of 
performance or early motor failure. We recommend that 
the unit be inspected once a year.

The motor should be checked for lubrication at this 
time. Lubricate only those motors which have an oil hole 
provided. A few drops of all-purpose oil (SAE 20) will be 
sufficient.

Fasteners and Set Screws

Any fan vibration has a tendency to loosen mechanical 
fasteners. A periodic inspection should include 
checking all fasteners and set screws for tightness. 
Particular attention should be paid to set screws 
attaching the fan wheel to the shaft. Loose bearing set 
screws will lead to premature failure of the fan shaft.

Removal of Dust and Dirt

The fan motor and wheel(s) should be checked for 
dust and dirt accumulation. Dirt buildup clogs cooling 
openings on the motor housing and causes motor 
overheating. Dirt buildup can contaminate bearing 
lubricant and collect on fan wheel blades causing loss 
of performance or premature failure. Cleaning can be 
accomplished by brushing off any dust that may have 
accumulated. Under no circumstances should motors or 
bearings be sprayed with steam or water. Even filtered 
units can accumulate build up and should be checked 
when cleaning filters.

Maintenance to these components is achieved through 
the provided access panels.

Internal Filter Maintenance

Opening the access panel provides access to the two 
inches deep, pleated 
30% efficient filters. 
These filters should 
be checked regularly 
and cleaned or 
replaced as needed.

Routine Maintenance

MiniCore

Internal  

Filter Size

Quantity

5

15 x 20

2

10

20 x 20

2

®

Содержание MiniCore 10

Страница 1: ...ing 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 signi cantly affects motor...

Страница 2: ...g delivery Alert the carrier of any damage detected The customer will make a notation of damage or shortage of items on the delivery receipt and all copies of the bill of lading which is countersigned...

Страница 3: ...ng Schematics 7 System Start Up Unit Documentation Record 8 Pre Start Up Checklist 8 Start Up Checklist 8 General 9 Check Voltage 9 Blower Wheel Rotation 9 Air Volume Check Measurement 9 Voltage Amper...

Страница 4: ...e sheet metal block off Install where the damper had been located Step 6 Using a 1 2 inch wrench remove the four 4 bolts from the discharge end of the unit that holds the blowers Step 7 Remove the fou...

Страница 5: ...C 5 44 8 14 39 4 10 44 8 19 2 39 4 All dimensions are in inches A B C Isolator Flat Washer Lock Washer Nut 1 2 inch threaded rod provided by others Flat Washer Lock Washer Nut Hanger bracket factory...

Страница 6: ...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 Frost Control Test Pro...

Страница 7: ...MB Blower Motor B T1 Frost Control Timer Typical Settings t1 OFF 5 min t2 ON 30 min TH Thermostat non adjustable 5 setting Required to be mounted in outdoor air duct TR Transformer Solid State Speed M...

Страница 8: ...but will also provide valuable information to personnel performing future maintenance Should an issue arise which requires factory assistance this completed document will allow unit experts to provide...

Страница 9: ...afety 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 an...

Страница 10: ...eaners on the core This will result in a damaged core Optional EC Motor Features Soft start All motors feature soft start technology which eliminates inrush current at start up The motors will reliabl...

Страница 11: ...Tighten collars and fasteners Wheel out of balance Clean replace or rebalance Low air ow cfm Fan speed too low Increase fan speed Dirty lters or energy core Replace lters and or follow the cleaning p...

Страница 12: ...____Time _____________ AM PM Notes ___________________________________________ _________________________________________________ _________________________________________________ _____________________...

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