Price Price RegenCore Series User manual

MANUAL – INSTALLATION
PRC
Price RegenCore Series
Revision: v001 –Issue Date: 10/08/19
© 2019 Price Industries Limited. All rights reserved.

PRC
TABLE OF CONTENTS
Price Industries Limited
404 Egesz Street
Winnipeg, MB R2R 1X5
115 Turnbull Court
Cambridge, ON N1T 1C6
MANUFACTURED BY
WARNING
FIRE OR EXPLOSION HAZARD
Failure to follow safety warning exactly could result in
serious injury, death or property damage.
Be sure to read and understand the installation, operation
and service instructions in this manual.
Improper installation, adjustment alteration, service or
maintenance can cause serious injury, death or property
damage.
NOTE: This document is customer property and must be
retained by the unit’s owner for use by maintenance personnel.
Overview
Description.................................................................... 1
General Safety Information ............................................ 1
Submittal Documents.................................................... 1
Unit Nameplate ............................................................. 1
Unit inspection .............................................................. 1
Storage ......................................................................... 1
Installation Instructions
Mechanical Instalation ................................................... 2
Location................................................................. 2
Clearances............................................................. 2
Roof Curb or Base ................................................. 2
Rigging .................................................................. 2
Assembly ............................................................... 4
Core Installation ..................................................... 4
Duct Connections .................................................. 5
Blower or Fan ........................................................ 5
Final Assembly ....................................................... 5
Electrical Installation ...................................................... 6
Main Power Connection......................................... 7
Auxiliary Power Connections .................................. 7
Control Installation.................................................. 7
Control Connections .............................................. 7
Hot and Chilled Water Coils....................................7
Cooling Device Condensate Traps.......................... 8
Draw Through Trap Sizing ...................................... 8
Blow Through Trap Sizing.......................................8
Wash Down Drains.................................................8
Maintenance
Maintenance ............................................................... 10
Filters ................................................................... 10
Fan and Motor Assembly ..................................... 10
Coil Winterization ................................................. 10
Service and Warranty Procedure .......................... 10
Maintenance Checklist ......................................... 11
Start-up
Start-up instructions.................................................... 12
Pre-Start-Up ........................................................ 12
Fan Start-up......................................................... 12
Sheave Alignment and Belt Tension...................... 13
Belt Tensioning..................................................... 13
Typical Unit Airflow Diagram ................................. 13
Typical Unit Sequence of Operation...................... 14
Typical Control Point List ...................................... 15
Limited Warranty ......................................................... 16

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PRC
Overview
Description
Price RegenCore (PRC) is an alternating mass-exchanger
energy recovery unit which recovers energy in the heating and
cooling seasons. These units are precisely sized and built to
match each unique installation.
General Safety Information
This manual provides information on installation, start-up and
maintenance for the PRC. Improper installation can lead to
unsatisfactory operation or dangerous situations. This unit
should only be installed and maintained by qualified personnel.
Installers and service personnel should have a clear
understanding of the contents of this manual and the submittal
documents prior to installation. Improper installation may
lead to electric shock, possible injury from contact with
moving parts and/or possible burns from contact with heating
components. Additional safety concerns can arise from
unit location such as a roof or inclement weather (outdoor
installations). Additional safety precautions may be required.
Installers shall follow all codes and regulation of authorities
having jurisdiction, including if applicable, but not limited to:
The Local Building code; the National Electrical Code (NEC);
the Canadian Electrical Code (CEC) the National Fire Protection
Association (NFPA); and, OSHA.
The appliance must be electrically grounded in accordance
with local codes or, in the absence of local codes, with the
National Electrical Code, ANSI/NFPA 70, and/or the Canadian
Electrical Code, CSA C22.1, if an external electrical source
is utilized. The appliance installation shall conform to local
building codes.
Submittal Documents
Detailed submittals are available for this and all related units.
These submittals contain pertinent information required to
properly install the equipment. Please review them thoroughly
before commencing the installation.
Unit Nameplate
Figure 1 shows a typical nameplate which can be found on a
PRC unit. The nameplate is generally located in the electrical
and damper linkage service panel. The nameplate includes
model number, serial number, electrical characteristics and
other pertinent data.
Unit inspection
This unit has been inspected and test-run prior to shipment to
make sure the unit is free from defects from the manufacturer.
It is possible that damage may occur during shipping, rigging
and installation.
Upon receiving the unit, check that all items have been
delivered by comparing the Bill of Lading to the equipment
received. If anything is missing or damaged, notify the carrier
immediately. The carrier should note this on the packing slip or
other form of documentation and provide a copy.
NOTE: Photograph of any possible damage for record purposes.
Check the unit model number, heater size and electrical characteristics
to make sure they are correct. If there are any issues, do not
proceed with the installation. Contact your sales representative.
Storage
If the unit is to be stored, take precautions to prevent condensate
from forming inside the unit’s electrical compartments. Make sure
the equipment is protected from weather and dust from site
conditions by temporarily sealing all openings to the air tunnel
for outdoor units and completely covering indoor units. Price
Industries will not assume any responsibility for equipment
damage resulting from condensate accumulation on the unit’s
electrical and/or mechanical components.
FIGURE 1 – TYPICAL NAMEPLATE
WARNING
The manufacturer’s warranty does not cover any damage
or defect caused by modifications to the unit including
unauthorized attachments of other components. Such
activity may lead to unsatisfactory performance and may
endanger life and property.

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PRC
INSTALLATION INSTRUCTIONS
Mechanical Installation
Location
Price PRC units are specifically designed to suit each
installation, please refer to the submittal documents and
nameplate for installation location information.
The unit must be located in an area that is accessible and
free from both outdoor and building pollution sources.
Careful attention should be made to avoid placing units near
chimneys, exhaust stacks, plumbing vents or appliance
vents. In addition, care should be taken to avoid mounting the
unit near building elements that would cause an excessive
accumulation of snow on and around the unit.
The unit is suitable for use in aircraft hangars, parking
structures and repair garages when marked and installed, as
applicable, in accordance with:
Standard for Airport Hangars, ANSI/NFPA 409 Standard for
Parking Structures, ANSI/NFPA 88A Standard for Repair
Garages, ANSI/NFPA 88B.
Clearances
The PRC unit is designed to be field-serviceable, which
includes the energy recovery cores, coils, filters, fan/motor,
damper linkages, and electronics. Refer to the submittal
engineering drawings for the locations of access panels and
safety/service areas, and ensure there is sufficient clearance for
safety, inspection, and service.
Particular care should be made to ensure the core
intakes/exhaust have sufficient space to ensure a smooth
uninterrupted airflow (refer to the submittal drawings for
details).
Roof Curb or Base
Price PRC units can be installed on a concrete housekeeping
pad, sleeper, or a roof curb. The entire perimeter base and
frame structure must be supported with either field-supplied
sleeper or structural steel. Make sure that the support structure
has the correct dimensions and that it is square and level.
NOTE Continuous Structural Support Requirement: The unit
is designed to have continuous structural support around
its entire perimeter. Failure to provide continuous structural
support will damage the unit and void the warranty.
The support curb and any required ductwork (connecting to
the base of the unit) should be installed prior to installing the
unit. Once the curb is correctly dimensioned, level, and square,
roofing can be completed in accordance with accepted roofing
practices. Refer to Figure 2 for curb installation detail.
NOTE: To minimize sound transmission, only cut openings in
roof deck for ductwork penetrations. Do not cut out the entire
roof deck within in the curb perimeter.
Gasketing or other forms of sealant must be used around the
curb perimeter and at the duct connections. When the curb
is supplied by Price Industries, a neoprene gasket is included.
Prior to the installation of the unit, secure the gasket to the
mating surface of the curb by peeling the backing off the
gasket material and applying adhesive-side down.
If the unit is elevated, a field constructed cat walk around the
unit is strongly recommended to provide access for service
Rigging
NOTE: All PRC units are designed to be lifted from the base.
Each section of the unit is provided with lifting points at each
corner and sometimes at intermediate points.
FIGURE 2 – CURB INSTALLATION DETAIL
WARNING
HEAVY COMPONENTS
Use properly-sized cables, chains, or slings only as
shown. Each cable, chain, or sling must be capable of
supporting the weight of the entire unit or component.
Adjust cable, chain, or sling length for an even lift. Other
lifting arrangements may damage unit or component.
Failure to properly lift unit or component may result in
death or serious injury.

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PRC
INSTALLATION INSTRUCTIONS
If the PRC unit comes shipped in sections, each section is to
be lifted separately unless otherwise noted. DO NOT lift any
section with cores installed. All sections are to be lifted in
their vertical orientation.
PRC units can be shipped with or without a structural steel
base frame. If the PRC unit comes mounted on a base frame,
lift using all available lifting points. If the PRC unit does not
come mounted on a base frame, lift using soft straps slung
under the lower frame.
The following rigging method should be used when the PRC
comes mounted on a base frame:
1. Before lifting, check the unit weight to ensure that hoisting
equipment is adequate size. Locate the lifting lugs as
marked or shown on the unit drawing, and as illustrated in
Figure 3.
2. Spreader bars must be used when lifting the equipment.
Care must be taken to ensure that the lifting cables do not
damage the unit casing during the lifting operation.
3. If the unit is to be lifted by forklift or other lifting devices,
make sure that lifting forces are exerted on the perimeter
base frame NOT the floor of the unit. Lift all components
to the installation site separately to avoid damage.
4. Equipment must be lifted simultaneously by all lifting points
to distribute the load properly. When multiple lifting points
are furnished, they are to share the weight evenly via
spreader bar(s), as illustrated in Figure 4.
5. Test lift the unit to make sure it is properly rigged and
balanced. Make any necessary adjustments to rigging
prior to performing the full lift.
The following rigging method should be used when the PRC
DOES NOT come mounted on a base frame:
1. Before lifting, check the unit weight to ensure that hoisting
equipment is adequate size.
2. Lift using soft straps slung under the lower frame. The
straps must be secured from sliding. Care must be taken
to ensure that the lifting cables and/or straps do not
damage the unit during the lifting operation.
3. If the unit is to be lifted by forklift or other lifting devices,
make sure that lifting forces are exerted on the perimeter
base frame NOT the floor of the unit. Lift all components
to the installation site separately to avoid damage.
4. Test lift the unit to make sure it is properly rigged and
balanced. Make any necessary adjustments to rigging
prior to performing the full lift.
FIGURE 3 – TYPICAL LIFTING POINTS ON A STRUCTURAL
BASE FRAME
FIGURE 4 – TYPICAL SPREADER BAR ARRANGEMENT

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PRC
INSTALLATION INSTRUCTIONS
Assembly
PRC units may be shipped as a single unit or in sections
for field assembly by the installing contractor. Refer to the
submittal drawings for section details. This can be done using
threaded rod or other means.
Prior to joining sections, apply gasketing (supplied with unit)
to one of the mating surfaces. Cinch the sections together
and bolt through the provided flange-holes. Apply additional
caulking on the roof flange and install a rain cap over the joint
(Figure 5). Caulk the ends on the rain cap to ensure the unit is
water tight.
Core Installation
After the unit sections have been assembled, leveled, and
installed in the final location (such as on a housekeeping pad,
sleeper, or roof-curb). the aluminum heat-recovery cores can
be installed by hand.
To ensure proper core packing, care must be taken not to drop
or use excessive force when installing the cores. It is strongly
recommended that if the cores are distorted, their dimensions
are corrected before they are installed.
Cores must be installed through the service/inspection door
on the side of the unit. The louver can be removed to make
installation easier, but installation of the cores through the
louver opening is not recommended.
The PRC units may be shipped with cores of various sizes.
Refer to the diagrams located on the core service/inspection
doors for the proper stacking arrangement.
The following general instructions can be followed for core
installation:
1. Remove louvers to permit handling access to core section.
2. Remove core stop frames.
3. Install the cores by sliding one or two stacked cores along
the drain pan or along the previous row of cores. The
provided sheet should be used to help make sliding the
cores over the previous row easier.
4. Ensure the cores are contacting the core stop frames on
the far side of the unit.
5. Core-ends must be aligned to ensure proper airflow and
structural loading of the core frames.
6. The smallest cores should be installed on the top row and/
or next to the service/inspection door, refer to the stacking
diagram for details.
7. Reinstall the core stops.
8. Reinstall the louver with supplied self-taping fasteners.
FIGURE 5 – TYPICAL FLANGE JOINTS

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PRC
INSTALLATION INSTRUCTIONS
Duct Connections
Adequate building relief shall be provided so as not to over
pressurize the building. This can be accomplished by: taking
into account, through standard engineering methods, the
structure’s designed/calculated infiltration/exfiltration rate; by
properly sized relief openings; or, by interlocking powered
exhaust system.
On outdoor units with ducting passing down through the curb,
the ducting will be installed prior to the unit being attached to
the curb. For all other duct connections, the ductwork will be
connected to the unit casing using fasteners by the installing
contractor. Unless indicated on the submittal drawings, the
weight of the ducting should not be placed directly on the unit.
The installing contractor should provide an external means to
carry the duct weight.
On outdoor installed units, attached external ductwork should
be properly waterproof sealed to prevent the ingress of water
from the environment.
Access panels in the ducting near the unit are recommended.
Where no access to the unit inlet or discharge section is
provided as part of the unit (for example an access door in the
unit), access panels are strongly recommended for inspection
and service.
Blower or Fan
PRC units may have blowers or plenum fans, and can be
direct- or belt-driven. The motor, fan, frame, and mounts
should be visually inspected before initial start-up and at every
fan service.
The blower/fan and motor are aligned before shipping from the
factory, shipping and or mounting may result in misalignment,
proper motor fan alignment should be checked and
adjustments should be made, if required, prior to unit start up.
PRC units can come equipped with variable frequency drives
for speed adjustment. The unit controller allows a broad range
of blower speeds to accommodate necessary field balancing,
see the controller manual for directions on adjustment.
If the blower can not be properly balanced using the controller
settings, please contact Price Industries for further instructions.
Final Assembly
Before proceeding with the electrical installation, remove all
shipping braces, packing, etc. (Figure 6).
FIGURE 6 – TYPICAL FAN BASE SHIPPING BRACKET

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PRC
INSTALLATION INSTRUCTIONS
Electrical Installation
NOTE: Use Copper Conductors Only: Unit terminals are
designed for copper conductors only. Failure to use copper
conductors may result in unit damage.
Main Power Connection
All connections to the unit and the main disconnect switch
must conform to the applicable Electrical Codes.
1. Before proceeding, ensure that the electrical connections
on the unit and supply match. The proper voltage for
connection is listed on the rating plate attached to the unit.
2. Unit must be electrically grounded in accordance with
local codes, or in the absence of local codes, with the
National Electrical Code, ANSI/NFPA 70, and/or the
Canadian Electrical Code, CSA C22.1, if an external
electrical source is utilized.
3. Refer to the unit submittal drawing to determine the
suggested location of the field wired power supply. Where
a disconnect is supplied as part of the unit, the main
power connection will be the line side of the disconnect.
4. If the unit is not supplied with a factory mounted
disconnect (as shown in Figure 7), a field supplied
disconnect must be installed in accordance with local
codes, or in the absence of local codes, with the National
Electrical Code, ANSI/NFPA 70, and /or the Canadian
Electrical Code, CSA C22.1. Where a disconnect is
supplied by others, the main power connection to the unit
will be the line side of the main splitter block. Refer to unit
electrical wiring diagrams for details.
5. Ensure that the routing of the power supply wiring does
not interfere with removal of any unit access door, or in
any way hinder servicing of the unit.
6. Refer to the submittals for electrical service routing. Unless
indicated on the submittals, DO NOT penetrate the floor
of the unit to route electrical conduits to the unit control
panel. Provide a pitch pocket in accordance with standard
roofing practice.
7. For units that are shipped in multiple sections, some
electrical connections may have to be made by the
installer in the field. Field wiring to be done by the installer
appears as a dotted line on the wiring diagram. Wiring
to connect two sections of a unit will be marked by the
factory and a terminal block will be provided for such
connections (as shown in Figure 9).
8. Fuses are furnished and installed by the factory in
accordance with the National Electrical Code, ANSI/NFPA
70, and/or the Canadian Electrical Code, CSA C22.1. If
replacement of any fusing is necessary, the replacement
MUST be of the same amperage as the original. Failure to
use equivalent replacement fuses may result in damage
to components within the electrical system of the unit
and/or the building. If any of the original wires need to be
replaced, they must be replaced with type TEW 105° or
equivalent except where noted.
9. On units with three-phase power supplies, make sure that
motor rotation is correct as connected.
Auxiliary Power Connections
A separate 120/1/60 power supply may be required on
units with convenience outlets and lights. Refer to unit wiring
diagrams for wiring sizing details and connection points.
FIGURE 7 – TYPICAL FACTORY-SUPPLIED POWER
DISCONNECT
FIGURE 8 – TYPICAL SPLITTER/TERMINAL BLOCK

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PRC
INSTALLATION INSTRUCTIONS
Control Installation
All field wiring must be in accordance with local codes, or in
the absence of local codes, with the National Electrical Code,
ANSI/NFPA 70, and/or the Canadian Electrical Code, CSA
C22.1.
Control wiring will depend on the controls provided with
the unit. A controller is provided with the PRC unit unless
otherwise specified in the submittal documents. A controller or
thermostat must be provided by the installing contractor. Refer
to unit electrical wiring diagrams for details.
Control Connections
Units supplied with controllers may require field-wiring to a
remote sensor or control panel. Refer to unit electrical wiring
diagrams for details.
An optional space thermostat or sensor may be shipped loose
for field installation. The sensor may be duct mounted and/or
wall mounted.
1. Locate space sensors or thermostats where they will
provide a representative reading of the space condition.
2. Avoid areas with cold drafts or in the warm supply-air
stream of the unit.
3. On indoor units, do not mount the thermostat or sensor
on the unit casing, as it may be affected by heat radiating
off the unit.
4. Do not place near other sources of warmth, such as
lamps, appliances, etc.
5. Refer to unit electrical wiring diagrams for details on how
to wire the sensor to the control panel.
6. Ensure that all remote wiring is equivalent to factory
installed wiring and that voltage drop does not exceed 10
percent.
An optional duct mounted discharge air temperature sensor
may be shipped loose for field installation.
1. The sensor strip must be parallel to the flow of air.
2. The sensor must be mounted as close to the center of the
duct as possible.
3. The sensor must be located in a straight section of the
duct and must be 8-10 feet (2.4 to 3m) downstream from
the supply air connection.
4. Do not install temperature sensors near any elbows or
transitions.
5. Refer to unit electrical wiring diagrams for details on how
to wire the sensor to the control panel.
6. Ensure that all remote wiring is equivalent to factory
installed wiring and that voltage drop does not exceed 10
percent.
An optional remote control panel may be shipped loose for
field installation.
1. Locate the indoor panel where operation and maintenance
personnel have ready access.
2. Refer to unit electrical wiring diagrams for details on how
to wire the sensor to the control panel.
3. Ensure that all remote wiring is equivalent to factory
installed wiring and that voltage drop does not exceed 10
percent.
Where possible, the low limit temperature sensor is factory
mounted. Some unit configurations require the sensor to be
field mounted in the supply air ductwork. In this situation, the
sensor and field wiring will be coiled up in the weather housing.
The installing contractor shall install the sensor approximately
10 ft. (3 m) down the supply air duct.
Hot and Chilled Water Coils
Some units may include hot water and/or chilled water
coils. Multiple coils may be stacked in the same rack. Indoor
units will have the piping connections stubbed out through
a removable coil access cover. Depending on the unit
configuration, outdoor units will have either a vestibule or
access section with a pipe chase to allow the piping to be
routed into the building. Refer to the submittal drawings for
piping arrangements.
1. All piping connections should flow counter to the air flow,
with water entering at the bottom and leaving at the top of
WARNING
IMPROPER PIPING MAY LEAD TO UNIT AND BUILDING DAMAGE
Improper piping on hot water and chilled water coils may
lead to leaks that can damage the unit and the building.
Follow these instructions carefully.
WARNING
IMPROPER FREEZE PROTECTION CAN LEAD TO UNIT AND
BUILDING DAMAGE
In climates where freezing conditions occur, some form of
freeze protection must be followed to avoid coil damage
and subsequent leaks that can damage the unit and the
building. Damage from improper freeze protection will void
the warranty.

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PRC
INSTALLATION INSTRUCTIONS
the coil. Confirm that the coil can be piped properly. If not,
do not continue piping. Contact your sales representative.
2. Hot and chilled water coils are generally not supplied with
any piping or control valves. The installing contractor is
responsible for all field piping and leakage tests.
3. Stacked coils need to be piped in parallel with reverse
return piping.
4. Route properly-sized piping through the vestibule or pipe
chase to the coils. Include control and isolation valves as
required.
5. Use a backup wrench whenever attaching fittings to the
coils. Failure to do so will damage the coils and void the
warranty.
6. Leak test the unit prior to filling the system. Repair all leaks
and re-test prior to filling the system.
7. Bypass coils during system flush. Failure to do so may
cause debris to be caught in control valves and or the coil.
Cooling Device Condensate Traps
The PRC unit may have an optional DX, chilled-water
cooling coil or other condensate producing device in either a
draw-through (upstream of the supply fan) or blow-through
configuration (downstream of the supply fan). Both of these
configurations should include a condensate pan which requires
a field-installed trap. The height and configuration of the trap
will depend on the relative location and total static pressure of
the supply fan. Refer to the calculations below to properly size
draw- and blow-through trap sizing (refer to Figure 9).
Draw Through Trap Sizing
H1 = Supply Fan TSP + 1 inch (2.5cm)
H2 = 0.5 x H1
Example: Size a condensate trap for a unit with TSP of 5 in
(12.5 cm) w.c.
H1 = 5 + 1 = 6 inches (15 cm)
H2 = 0.5 x 6 = 3 inches (7.5 cm)
Blow Through Trap Sizing
H1 = supply fan TSP + 1 inch (2.5 cm) H2 = H1 - ½ inch (1.3
cm)
Example: Size a condensate trap for a unit with TSP of 5 in
(12.5 cm) w.c.
H1 = 5 + 1 = 6 inches (15 cm)
H2 = 6 – 1/2 = 5 1/2 inches (14 cm)
Wash Down Drains
Some PRC units may be supplied with wash-down drains.
These allow water to drain while washing the inside of the unit.
It is not recommended to trap these drain connections. While it
will not damage the unit, the traps would need to be constantly
primed to provide a seal. Acceptable alternatives:
1. Provide caps for each wash-down drain. These can be
removed during the wash-down process and a hose can
be attached to direct flow to a suitable floor drain (indoor
applications).
2. Pipe all the wash-down drains to a suitable floor drain
(indoor applications) and include a shut-off valve. The
valve can be opened during the wash-down process.
WARNING
IMPROPER TRAPPING MAY FLOOD UNIT
Improper condensate traps may flood the unit leading to
damage of both the unit and the building below. Follow the
following instructions carefully.
FIGURE 9 – CONDENSATE TRAP SIZING

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PRC
INSTALLATION INSTRUCTIONS
Installation Checklist
The following checklist is a summary of all the steps necessary for a successful start-up. This is not intended to replace the
detailed information in the applicable sections of this manual.
General Installation Date Completed Signed
Inspect unit for freight damage or missing items on the Bill of Lading.
Confirm the installation location meets the necessary clearances.
Assemble, square, and level the roof curb if required.
Install ductwork and attach to curb (for units with bottom supply/return).
Install pitch pocket for electrical supply if required.
Set unit on curb, sleeper, or housekeeping pad.
Ensure unit is level.
Seal, bolt, and cap all split joints as required.
Install RegenCores heat recovery cores as required
Remove shipping hold downs, shipping braces etc. from unit.
Check all fan isolators for proper adjustment and operation.
Install filters as required.
Electrical Connections
Confirm that main electrical supply matches the name plate requirements.
Inspect control cabinets and tighten any loose connections.
Provide a disconnect if one is not factory supplied.
Connect power to factory or field-supplied disconnect.
Properly ground the unit.
Interlock unit to exhaust system.
Control Wiring Connections
Complete wiring of the controllers as per wiring diagrams.
Hot Water And Chilled Water Coil Connections
Confirm coils can be piped correctly.
Route properly sized piping through either the vestibule or pipe chase.
Test for pipe leaks.
Install cooling device condensate drains if required.
In cold weather climates, make sure there is some form of freeze protection.

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PRC
MAINTENANCE
Maintenance
Regular maintenance is the best way to avoid untimely
and expensive repairs, and it extends the useful life of the
equipment. Maintenance should only be performed by qualified
service personnel familiar with air-handling equipment and the
local codes and requirements.
Filters
It is important to replace filters with the same efficiency filters
as used when the air balance is done. Filters with different
efficiencies may cause a change in airflow.
A regular filter maintenance schedule should be set-up and
followed. The controller (if equipped with this option) allows
the user to set the run hours between filter changes and the
controller will notify the user when the desired interval has been
reached.
The filters are located close to the fans; therefore, it is
recommended that the unit be shut down while the filters are
being changed.
When replacing the filters, inspect the louvers and cores, clean
if necessary.
Fan and Motor Assembly
The fan/motor access panel should only be opened if the
power has been shut off and locked off for the unit.
Review the blower service label on the blower for the
recommended service frequency. An alternate service
frequency is 3,000 operating hours. The controller (if equipped
with this option) allows the user to set up blower service
notifications when a desired interval has been reached.
Blower service includes:
1. Greasing the bearings on the fan as well as the on the
blower motor, as required.
2. Inspect the belt casing and tension (if present) for cracks
frays or other signs of wear.
The controller (if equipped with this option) allows the user to
set the run hours for belt replacement and the controller will
notify the user when the desired interval has been reached.
Coil Winterization
In climates where freezing conditions may occur, some form
of freeze protection for water coils is required. Coils can be
drained and blown out with compressed air to ensure no
water remains. Alternatively, some form of antifreeze rated for
the expected ambient temperatures can be used. Antifreeze
reduces the coil performance. If the coil was not designed
for antifreeze, some amount of coil performance loss can be
expected.
Service and Warranty Procedure
Replacement Parts
Replacement parts can be obtained from Price Industries at
[email protected] or 1 866 632 0066. When
contacting Price for replacement parts, refer to the model
number and serial number on the name plate.
Warranty Parts
See limited warranty below for what is covered. Contact Price
Industries at mech [email protected] or 1 866 632
0066 for warranty parts instructions. Please have the unit
model and serial numbers available. The warranty part may
need to be returned to Price to obtain a new warranty part.
Price Industries reserves the right to repair or replace a part
under warranty.
WARNING
HAZARDOUS SERVICE PROCEDURES
During installation, testing, servicing and troubleshooting of
this product it may be necessary to work with live electrical
components and moving mechanical components. Have
a qualified technician who has been properly trained in
handling live electrical components perform these tasks.
Failure to follow all electrical safety precautions when
exposed to live electrical and mechanical components
could result in death or serious injury.

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PRC
MAINTENANCE
Maintenance Checklist
General Maintenance Quarterly Annually
Inspect inside of unit for water leaks, foreign material etc. X
Clean or replace filters with equivalent to those supplied by manufacturer. X
Check cooling device drain pans and traps for cleanliness and blockage. X
Check all dampers, linkages and damper actuators and adjust and tighten as
required. X
Check cooling or heating coils for cleanliness and clean as necessary. X
Coil Winterization (Autumn) X
Blower/Fan Maintenance
Check all belts. Tighten or replace as necessary. X
Check sheave alignment. Adjust as necessary. X
Check all bearings and lubricate as necessary. X
Inspect fan wheel and housing. Clean as necessary. X
Electrical Maintenance
Check for loose wire connections in control panel. X
Check motor amp draw against name plate. X
Inspect all contactors to ensure they are clean and making good contact. X
Check all safeties. X

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PRC
START-UP & WARRANTY
Start-up instructions
Pre-Start-Up
Prior to starting up the PRC unit, make sure the following work
is complete:
Prior to powering the unit, it is crucial to check the incoming
electrical power:
1. Check that the electrical power matches what is stated on
the nameplate.
2. Check that the voltage on each leg is within the stated
voltage range and/or does not deviate in excess of10% of
name plate value.
3. Check that the voltage difference on all three phases is
within 2%.
If any of these conditions are not met, do not continue
commissioning the unit. Arrange to have the power issue
resolved.
Fan Start-up
Once the power has been checked, proper fan rotation must
be confirmed:
1. Turn on the disconnect.
2. Select “off” for the system switch.
3. Depress the supply fan contactor manually for a moment
to “bump” the fan. Check the fan rotation. There is
typically an arrow on the fan housing to indicate rotation
direction.
4. If the fan rotation is not correct, shut down the unit and
turn off the power. Switch any two of the power leads at
the load side of the disconnect.
5. Check the fan motor amp draw and compare it to the
name pate rating. If amp draw is too high, correct the air
flow and/or duct static pressure drop to reduce amp draw.
If the fan speed is adjusted, make sure not to exceed the
maximum fan speed rating.
6. The fan thermal overloads must be set to the appropriate
motor performance after all adjustments have been made.
Pre-Start-up Checklist
Task Complete
General
All steps in installation check list are complete.
Fan Inspection
Shipping bolts (under fan isolators) and
materials have been removed from the unit.
Manually rotate fans and confirm they move
freely.
All bearing, drive, and blower set-screws have
been checked for tightness.
Drive alignments and belt tension are correct.
Electrical
Electrical power is acceptable (see below).
WARNING
ELECTRIC SHOCK HAZARD
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/tagout
procedures to ensure the power cannot be inadvertently
energized. Failure to disconnect power before servicing
could result in death or serious injury.
WARNING
HAZARDOUS SERVICE PROCEDURES
During installation, testing, servicing and troubleshooting of
this product it may be necessary to work with live electrical
components and moving mechanical components. Have
a qualified technician who has been properly trained in
handling live electrical components perform these tasks.
Failure to follow all electrical safety precautions when
exposed to live electrical and mechanical components
could result in death or serious injury.
WARNING
HAZARDOUS ROTATING EQUIPMENT
Contact with the rotating fan, belts or motor can lead
to death or severe injury. Follow proper lockout/tag-out
procedures to ensure the power cannot be inadvertently
energized.

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START-UP & WARRANTY
Sheave Alignment and Belt Tension
1. Confirm that the fan and motor shafts are parallel. If not,
make adjustments.
2. Confirm that the fan and motor sheave grooves are
coincident. If not, make adjustments.
3. Confirm all setscrews are tight.
Belt Tensioning
On units with belt drive fans:
1. Check belt tension. The correct tension is the lowest
possible without slippage.
2. Check belt tension frequently during the first two days
after start-up.
3. Avoid foreign materials such as oil on the belts.
AIRFLOW DIAGRAM
Typical Unit Airflow Diagram
The Price RegenCore (PRC) is a fixed-bed regenerator type of energy recovery unit. The PRC recovers sensible and latent energy
during heating season, and sensible energy in cooling seasons.
The PRC utilizes the thermal mass of a heat exchanger core manufactured from 1100 alloy aluminum to capture and dissipate
heat to or from a building. The new regenerating core product sets itself apart from other types of recovery devices because of
its capability to reach and maintain industry leading thermal effectiveness of up to 90% and has no pre-heat or frost prevention
requirement down to outdoor temperatures of -40°C/F.

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PRC
START-UP & WARRANTY
Typical Unit Sequence of Operation
1. Blowers: With an “On” signal the controller checks fire and fault status, if the fire signal is clear and there are no unit faults.
a. The operation dampers are moved from their standby positions to the appropriate operational position.
b. After the dampers have moved to their respective operating positions the supply and exhaust blowers are started.
c. The supply and return fans start and run continuously.
2. Operation Mode: Operation modes are heat recovery or bypass. Operation mode is established by the unit controller based on
user adjustable set points.
a. Heat recovery: The control dampers work in unison, with alternate groups opening and closing. The movement of the
dampers alternates the operational state of the regenerative l cores from charging to discharging. The length of the cycle
is adjustable by the controller with a standard period of 70 seconds.
i. Phase I: Dampers B-D1 & B-D2 are closed and A-D1 & A-D2 are open. Core B is capturing heat from or releasing
heat to the return air stream, and Core A is conditioning the supply air from the heat stored or dissipated by the
previous cycle phase.
ii. Phase II: Dampers B-D1 & B-D2 are open and A-D1 & A-D2 are closed. The above described thermal roles of core A
and B are then reversed.
b. Free cooling: The control dampers work in the same manner as heat recovery, the damper change over period is
increased to 180 minutes, adjustable; this change over period effectively eliminates heat transfer while still allowing the
cores to be purged of foreign material.
c. Recirculation (optional): All dampers are open allowing air to bypass the regenerative core and recirculate through the
system.
3. Shut Down: On the termination of the “On” signal the unit:
a. First shuts off the blowers;
b. After the required timer delay the dampers are moved to their standby position.
4. Removing Power from the unit: If the unit is going to be disconnected from power for a significant period, it should be shut off
and allowed to complete the movement to damper standby before the power is disconnected.
5. External Dampers (Optional): Redundant normally closed dampers can be installed on the outdoor air paths to ensure no air
movement when the unit is not operational.

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PRC
START-UP & WARRANTY
Typical Control Point List
Controller Input Points:
Type Instance Variable Units User Access Description
Analog Input AI1 Network.FreshAirTemp °F Read Only Measured outdoor/fresh air temperature
Analog Input AI2 Network.SupplyAirTemp °F Read Only Measured supply/discharge air temperature
Analog Input AI3 Network.ReturnAirTemp °F Read Only Measured return air temperature
Control and Status Points:
Type Instance Variable Default Min Max Units User Access Description
Analog Value AV1 Network.SP_
SupplyAirTemp 70 50 90 °F Commandable Desired Supply Air Temperature
Binary Value BV1 Network.Unit_Run On (1) Off (0) On(1) Commandable Unit Run Command
Binary Value BV10 Network.Unit_
InAlarm 0 0 1 Read Only
When true, unit has
alarm but may still be
operational
Binary Value BV11 Network.Unit_
SeriousAlarm 0 0 1 Read Only
When true, unit has
shutdown due to a
serious alarm
Binary Value BV12
Network.Dirty_
Supply_Filter_
Alarm
0 0 1 Read Only Pressure drop on supply
filter high
Integer Value IV31 Network.Num_
Alarms 0 0 Read Only Number of unacknowledged alarms
Multi State
Value MSV11 Network.Unit_ Mode_Override 1 0 5 Commandable
Select to force unit into
the following modes:
0 = ForceOff
1 = Auto (Normal)
2 = ForceEnergyRecovery
3 = ForceFreeCooling
4 = ForceRecirculation
Multi State
Value MSV12 Network.Unit_ Status 1 9 Read Only
Unit Status:
1 = Unit On
2 = Off due to alarm
3 = Off due to BMS
4 = Off due to Scheduale
5 = Off due to System Switch
6 = Off due to Keypad Enable
7 = Off due to Interlock
8 = Manual Mode
9 = Unit in Startup Sequence
Multi State
Value MSV13 Network.Unit_ SystemStatus 0 7 Read Only
Unit mode enumeration:
0 = Off
1 = EnergyRecovery
2 = Free Cooling
3 = Recirculation

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PRC
START-UP & WARRANTY
Limited Warranty
(a) Price warrants and guarantees for a period limited to twelve
(12) months from date of installation / commissioning or
eighteen (18) from date of shipment - whichever comes
first, that the Products are manufactured in accordance with
Price’s quotation and submittal drawing specifications and
of specified material unless otherwise expressly stated.
(b) Price will manufacture the goods to be supplied in
accordance with the product specifications supplied by
Purchaser. Price shall not be liable for any loss or damages
of any kind resulting from errors, omissions or untimely
notification of changes to the specifications that have
been provided. In the event that changes to the product
specifications arise, Price must be notified immediately and
in writing. The Purchaser will assume liability for the cost of
all material and resources, work-in-progress and finished
goods that have become obsolete or that can no longer
be used due to any such changes in the specifications
supplied.
(c) In the event the Products supplied do not comply with
quotation and submittal drawing specifications and/
or material quality standards within the warranty period,
Price will either repair the Products supplied or provide
replacement of such Products that conform to the quotation
and submittal drawing specifications. This decision is made
at the sole discretion of Price. In either case, Price will not
be responsible for labor and freight charges incurred in
replacing Products except as agreed to by Price in writing,
nor will Price be responsible for incidental, consequential
or punitive damages. In the event Price elects to repair
the Products supplied, Purchaser will assist by providing
Price with all details of the problem and a written quotation
for the costs of such work to be carried out. If the repair
is authorized by Price, then Purchaser will assist by
coordinating and supervising the repair work. In the event
Price elects to replace the Products, Price may either (i)
direct the Purchaser to return such Products to Price or (ii)
provide replacement Products to the Purchaser without the
return of the original Products, in which case Purchaser will
be responsible for the disposal of such original Products.
Such election is at the sole discretion of Price, and all returns
of Products to Price must be approved in advance by Price.
In the event Price directs Purchaser to return the Products
to Price for repair or replacement, Purchaser agrees to
return such Products to Price in a manner consistent with
the original packaging in order to prevent damage. All freight
back to Price’s factory and return freight to Purchaser must
be agreed upon prior to return of the Products.
(d) Price makes no warranty whatsoever with respect to
components or items supplied which may be warranted
separately by their manufacturer. Price does not warrant
factory mounted controls and components of Products
supplied and owned by a third party for mounting by Price.
Back charges to Price for Products under warranty by
others will only be accepted if prior written approval is given
by Price.
(e) THE WARRANTIES AND LIABILITIES SET FORTH IN THE
PRIOR PARAGRAPHS ARE THE ONLY WARRANTIES
OR LIABILITIES OF PRICE. ALL OTHER GUARANTEES,
WARRANTEES, CONDITIONS AND REPRESENTATIONS,
EITHER EXPRESS OR IMPLIED, WHETHER ARISING
UNDER ANY STATUTE, LAW, COMMERCIAL USAGE OR
OTHERWISE, INCLUDING IMPLIED WARRANTIES FOR
FITNESS OF MERCHANTIBILITY AND FITNESS FOR A
PARTICULAR PURPOSE, ARE HEREBY EXCLUDED.
(f) The foregoing warranty shall not take effect unless Purchaser
shall inform Price in writing of any flaw, defect or deficiency
in the Products promptly after such flaw, defect or deficiency
becomes apparent and, in any case, not later than one
(1) year from date of shipment. The warranty provided for
under these terms shall be void upon the following: (i) the
unauthorized repair or modification by any person other than
Price of Products claimed to be defective; or (ii) the improper
installation, maintenance or operation of the Products other
than in strict accordance with standard industry practices
and compliance with the specific recommendations of Price
respecting the Products; or (iii) the misuse, negligence,
or operation of the Products other than for their intended
purpose.
The Price warranty is void if:
1. The unit is not installed and serviced in accordance
with manufacturer’s recommendations.
2. Operation, maintenance, start-up and shut down are
not in accordance with manufacturer’s instructions.
3. Unit is operated in conditions not specified by the
manufacturer.
4. The unit is operated while the building is under
construction.
5. Unit is used for application which it was not intended

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PRC
NOTES

This document contains the most current product information as of this printing.
For the most up-to-date product information, please go to priceindustries.com
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