Oxygen 8 NOVA Series User manual

INSTALLATION
MANUAL
NOVA SERIES

Table of Contents
1. General Information 3
2. Installation 4
2.1 Unwrapping the Product 4
2.2 Assembly 4
2.3 Weights 5
2.4 Horizontal Installation 6
2.4.1 Front Doors 6
2.4.2 Side Doors 8
2.5 Vertical Installation 8
2.6 Installation of Accessories 10
2.6.1 Horizontal Coupled Accessories 10
2.6.2 Vertical Coupled Accessories 11
2.6.3 Decoupled Accessories 12
2.7 External Sensors 13
2.7.1 Supply Air Temperature Sensor 13
2.7.2 Pressure Sensor 13
2.7.3 CO2/VOC Sensor 14
2.7.4 Combination Temperature 15
/Humidity Sensor
3. Access Requirements 16
4. Lifting Requirements 16
5. Electrical Hook-Ups 17
5.1 Electrical Information 17
5.2 1PH Electrical Hook Up (2 Fans) 18
5.3 3PH Electrical Hook Up (2 Fans) 19
5.4 3PH Electrical Hook Up (4 Fans) 20
5.5 3PH Electrical Hook Up (6 Fans) 21
5.6 1PH Lite Electrical Hook Up (2 Fans) 22
5.7 3PH Lite Electrical Hook Up (2 Fans) 23
5.8 3PH Lite Electrical Hook Up (4 Fans) 24
5.9 3PH Lite Electrical Hook Up (6 Fans) 25
5.10 Fan Connection - 1PH 26
5.11 Fan Connection - 3PH 27
6.0 Wiring Diagrams 28
6.1 Nova 240V, Single Phase, S1 29
6.2 Nova 240V, Single Phase S2 30
6.3 Nova, Three Phase, S1 31
6.4 Nova, Three Phase, S2 32
6.5 Field Wiring, DX Coil, EKE 33
6.6 Field Wiring, DX Coil, Electric Reheat, EKE 34
6.7 Field Wiring, Electric Preheat, DX Coil 35
Electric Reheat, EKE
6.8 Field Wiring, Electric Preheat, DX Coil, EKE 36
6.9 Field Wiring, Damper Wiring 37
6.10 Field Wiring, Electric Reheat Wiring 38
6.11 Field Wiring, Electric Preheat, 39
Electric Reheat Wiring
6.12 Field Wiring, Electric Preheat Wiring 40
6.13 Field Wiring, Cooling Water Coil 41
6.14 Field Wiring, Humidity Control 42

Installation Manual Nova Series
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This manual includes important instructions for safe
connection of the Heat Recovery Ventilator (HRV) or
Energy Recovery Ventilator (ERV). Before connecting
the unit, please read carefully and follow all of the
instructions below! The manufacturer reserves the
right to make changes, including changes in the
technical documentation, without previous notification.
Please keep this manual for future reference.
Consider this manual a permanent part of the product.
This manual will show the manufacturers'
recommended installation method. Please note that
local codes and regulations may override these
recommendations. The installation must follow local
codes and standards.
The National Electric Code (NEC), the National
Fire Protection Agency (NFPA), and the Canadian
Electrical Code (CEC) must be followed. Installation
of this product must be performed by a qualified and
accredited professional in conformance with local and
national codes, standards and licensing requirements.
Warnings and Caution
Warnings and cautions appear at the appropriate
sections throughout this manual. Please read these
sections carefully.
Warning
This sign indicates a potentially hazardous situation,
which could result in death or serious injury if not
avoided.
Caution
This sign indicates a potentially hazardous situation,
which may result in minor or moderate injury if not
avoided. It may also alert against unsafe practices.
Caution
This label indicates a situation that may result in
equipment or property damage only accidents.
1.0 General Information

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2.1 Unwrapping the Product
When removing the shrink wrap, be cautious with
knives and sharp tools to prevent scratching the
paint.
The HMI, pressure sensor, external duct pressure
sensor and all other optional field components will be
found in the electrical box or fan compartment. They
are secured there for transport and to easily find
them on the job site.
2.2 Assembly
On the C-Series cabinets, it is possible to remove
the fan section from the core section for ease of
installation and maneuverability in tight locations.
Use the following steps to disassemble the fan
section from the core section.
1. Remove the cover from the fan.
2. Undo the screw terminals that are holding the
power wires and the communication wires.
*See back of manual for electrical drawings.
3. Loosen the cable glands and pull the wires out of
the motor.
4. Pull the pressure tube from the nozzle port on
the fan bell mouth.
5. Push the pressure tube and all cables back into
the core section, through the rubber grommets
that are on the fan wall.
6. Repeat steps 1 ― 5 for the other fan.
7. Remove bolts for each corner and top shelf.
8. Pull apart the two sections.
9. Reverse actions for assembly (contractor is
responsible for correct assembly).
2.0 Installation
1 2 4 3
7 7 8
5
Unit Wrapped
for Shipping
4x Corner
2x Shelf

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2.3 Weights
Model Fan
Section
(A) lbs.
Core
Section
(B) lbs.
Fan
(C)
lbs.
Core
(D)
lbs.
Indoor
Total
Weight
(H/V) lbs.
Outdoor
Total
Weight*
lbs.
A16 Shipped as 1 Piece 27 x 2 28 320/330
A18 Shipped as 1 Piece 27 x 2 28 380/390 490
B20 Shipped as 1 Piece 29 x 2 45 425/435
B22 Shipped as 1 Piece 29 x 2 45 470/480 610
C20 215 360 38 x 2 72 550/575
C20 - Bypass 260 470 38 x 2 72 695
C22 Shipped as 1 Piece 38 x 2 72 600/615 770
C22 - Bypass Shipped as 1 Piece 38 x 2 72 770 960
C24 255 390 51 x 2 88 630/645
C26 Shipped as 1 Piece 51 x 2 88 675/690 860
C26 - Bypass Shipped as 1 Piece 51 x 2 88 880 1100
C30 325 450 75 x 2 55 x 2 755/775
C32 Shipped as 1 Piece 75 x 2 55 x 2 810 1000
C32 - Bypass Shipped as 1 Piece 75 x 2 55 x 2 1030 1275
C40 Shipped as 1 Piece 38 x 4 72 x 2 905 1120
C40 - Bypass Shipped as 1 Piece 38 x 4 72 x 2 1225 1490
C48 Shipped as 1 Piece 51 x 4 88 x 2 1055 1300
C48 - Bypass Shipped as 1 Piece 51 x 4 88 x 2 1395 1690
C58 Shipped as 1 Piece 38 x 6 72 x 3 1265 1530
C70 Shipped as 1 Piece 51 x 6 88 x 3 1495 1790
A
B
C
D
*Outdoor total weights include dampers in casing, hoods, roof and base rail.
Outdoor Unit with
Hoods, Base Rail
and Dampers

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2.4 Horizontal Installation
2.4.1 Front Doors
The hanging brackets are supplied loose with the
necessary hardware to install them. They are not
shipped assembled due to the variability of installation
access on job sites.
Each hanging bracket is composed of two pieces: an
inner component and an outer component. The units
are designed to have four sets of brackets to support
the unit.
Note Depending on the ducted opening location
selected during the design phase, the location of
the brackets will vary. Please consult your submittal
drawings for specific locations.
Outer
Bracket
Inner
Bracket
Unit with 1A Opening Unit with 1A and 3A Openings
Warning
The unit must be installed with both the inner and outer bracket. Each unit must also have all four brackets installed
to meet these guidelines.

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Assembly of Hanging Brackets
1. Locate the position of the brackets on the outside
of the unit.
2. Mark the 8 hole locations and drill to allow for
the ¼" bolt. 32 - ¼" bolts, 32 - ¼" lock nut, 32 - ¼"
washers and 64 - ¼" washers have been provided
with the unit.
3. Assemble the hanging bracket by aligning the 8
holes of the outer bracket through the unit and
with the inner bracket. Note: the inner component
should be oriented so that its flange is pointing to
the ceiling, and the outer bracket has the single
hole pointing to the ceiling.
4. Install the 8 bolts. Caution - Do not over tighten
and crush the panel.
5. Install 4 tek-screws in the flange portion of the
inner bracket and secure it to the top casing of the
unit.
6. Install 4 tek-screws in the lower flange of the outer
bracket to secure it to the bottom frame of the unit.
7. Repeat steps 1 through 6 for the remainder of the
brackets.
8. The hole in the outer brackets are designed for a
½" threaded rod to hang the units by.
Bracket Alignment

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2.4.2 Side Doors
When a Nova unit is ordered with side doors, there is no access to install hanging brackets and the unit must
be supported from below as seen in the image. The sizing of the supports is to be designed by the installing
contractor.
2.5 Vertical Installation
A floor mounted Nova unit will ship with an installed base rail. These units can be installed directly on the floor or a
housekeeping pad.
Unit with Side Doors and Unistrut
Vertical Unit with Base Rails
on Housekeeping Pad

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2.6 Installation of Accessories
2.6.1 Horizontal Coupled Accessories