Power Connector ........................................................ 57
Table 10A Pressures: Full Load Cooling ..................... 58
Table 10B Pressures: Full Load Heating ..................... 58
Table 11A Pressures: Part Load Cooling..................... 59
Table 11B Pressures: Part Load Heating .................... 59
Manual 2100-549G
Page2 of 59
GETTING OTHER INFORMATION AND PUBLICATIONS
These publications can help you install the air
conditioner or heat pump. You can usually find these at
your local library or purchase them directly from the
publisher. Be sure to consult current edition of each
standard.
National Electrical Code ..................... ANSI/NFPA 70
Standard for the Installation ............. ANSI/NFPA 90A
of Air Conditioning and Ventilating Systems
Standard for Warm Air ......................ANSI/NFPA 90B
Heating and Air Conditioning Systems
Load Calculation for ....................... ACCA Manual J or
Winter and SummerManual N
Air Conditioning
Low Pressure, Low Velocity ........ ACCA Manual D or
Duct System DesignManual Q
Winter and Summer Air Conditioning
FOR MORE INFORMATION, CONTACT
THESE PUBLISHERS:
ACCAAir Conditioning Contractors of America
1712 New Hampshire Avenue
Washington, DC 20009
Telephone: (202) 483-9370
Fax: (202) 234-4721
ANSIAmerican National Standards Institute
11 West Street, 13th Floor
New York, NY 10036
Telephone: (212) 642-4900
Fax: (212) 302-1286
ASHRAE American Society of Heating, Refrigeration,
Batterymarch Park
P.O. Box 9101
Quincy, MA 02269-9901
Telephone: (800) 344-3555
Fax: (617) 984-7057
Manual 2100-549G
Page3 of 59
GENERAL
The equipment covered in this manual is to be installed
by trained, experienced service and installation
technicians.
The I-TEC must be installed with the Bard
manufactured IWS wall sleeve and ILG louver
grille accessories. These are sold as separate
accessories. Any substitutions will void the
manufacturer’s warranty.
The unit is designed for use with or without ductwork.
For use without ductwork, Plenum Box IPBDF8-color (8"
height) or IPBDF12-color (12" height) is recommended.
These instructions explain the recommended method to
install the air cooled self-contained unit and the
electrical connections to it.
These instructions and any instructions packaged with
any separate equipment required to make up the entire
heating and air conditioning system should be carefully
read before beginning the installation. Note particularly
“Start Procedure” and any tags and/or labels attached to
the equipment.
While these instructions are intended as a general
recommended guide, they do not supersede any national
and/or local codes in any way. Authorities having
jurisdiction should be consulted before the installation is
made. See Page 3 for information on codes and standards.
Size of unit for a proposed installation should be based
on heat loss or heat gain calculation made according to
methods of Air Conditioning Contractors of America
(ACCA). The air duct should be installed in accordance
with the Standards of the National Fire Protection
Systems of Other Than Residence Type, NFPA No.
90A, and Residence Type Warm Air Heating and Air
Conditioning Systems, NFPA No. 90B. Where local
regulations are at a variance with instructions, installer
should adhere to local codes.
ANSI Z535.5 Definitions:
• Danger: Indicate[s] a hazardous situation which, if not
avoided, will result in death or serious injury. The signal
word “DANGER” is to be limited to the most extreme
situations. DANGER [signs] should not be used for
property damage hazards unless personal injury risk
appropriate to these levels is also involved.
• Warning: Indicate[s] a hazardous situation which, if
not avoided, could result in death or serious injury.
WARNING [signs] should not be used for property
damage hazards unless personal injury risk appropriate
to this level is also involved.
• Caution: Indicate[s] a hazardous situation which, if not
avoided, could result in minor or moderate injury.
CAUTION [signs] without a safety alert symbol may be
used to alert against unsafe practices that can result in
property damage only.
• Notice: [this header is] preferred to address practices
not related to personal injury. The safety alert symbol
shall not be used with this signal word. As an alternative
to “NOTICE” the word “CAUTION” without the safety
alert symbol may be used to indicate a message not
related to personal injury.
1 Motor will deliver consistent CFM through voltage supply range with no deterioration.
2 Continuous fan CFM is the total air being circulated during continuous fan mode.
3 Will operate at rated Full Load Airflow when operating with Heat Pump.
4 Will occur automatically with a call for "W3" or "Emergency Heat" signal from the thermostat (Heat Pump Operation is
These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the National Electric Code (latest
revision), article 310 for power conductor sizing.
Caution: When more than one field power conductor circuit is run through one conduit, the conductors must be derated. Pay special
attention to note 8 of table 310 regarding Ampacity Adjustment Factors when more than three conductors are in a raceway.
Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors.
Based on 75°C copper wire. All wiring must conform to the National Electrical Code and all local codes.
Maximum KW that can operate with heat pump on is 10KW for 1-Phase and 9KW for 3-Phase.
1 Represents Electric Heat Only. Electrical Control Circuit will lockout Heat Pump Operation.
Manual 2100-549G
Page6 of 59
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Back View
Air
Supply
Air
Return
Sleeve
Outer
Inner
Sleeve
(2) Opt.
Unit Drain
Entrances
MIS-2917 A
"
1
8
3
"
8 31
Unit Specification Sheet
FIGURE 1
UNIT DIMENSIONS
20" x 24" Supply Frame
" Total Width
8
5
47
20"
Air
Return
Openings
(2) Return
Right Side View
"
3
8
30" With Doors and
Sleeve
Outer
Sides Removed
31
Total Depth
4
3
26 "
High Voltage
Entrance
7
"
11
Wire Channel
8
Electric Heat
Hinges
(4) Lift-Off
Locking
Inner
94"
Door Latch
Sleeve
"
3
4
71
Upper
Total
Height
(2) Side
" 71
2
1
Section
Drains
(2) Unit
Handles
1
58"
Door Latch
Disconnect
Electrical
Locking
8"
"
1
2
24
"
4
22
Lower
Section
"
5
8
15
"
1
"
3
4
3
(Remove Sides)
Side Forklift Holes
4
13
Front Forklift Holes
(Remove Front Trim)
2"
Top View
" With Sides Removed
1
8
" 11
46
1
4
"
4
1
3
24"
"
1
4
28
1 24
Low Voltage
"
Entrance
Filters
Front View
(2) 2"x24"x30"
Return Air
Control Panel
Air Filters
Vent Intake
(2) Washable
Air Filters
(2) 12" x 20"
Vent Exhaust
Manual 2100-549G
Page7 of 59
SHIPPING DAMAGE
Upon receipt of equipment, the unit should be checked
for external signs of shipping damage. The skid must
remain attached until the unit is ready for installation. If
damage is found, the receiving party must contact the
last carrier immediately, preferably in writing, requesting
inspection by the carrier’s agent.
UNIT REMOVAL FROM SKID
WARNING
This unit is heavy and requires more than one person to
handle during installation and removal from the skid.
Extreme caution must be taken to prevent injury to
personnel and damage to the unit. Use appropriate
safety equipment, including gloves when handling.
Failure to do so may result in serious injury.
A forklift or a lift rated for the load (Figure 2A) is
required to lift the unit off from the skid. This unit is
top heavy and should never be tipped while moving it.
The I-TEC is designed to be lifted off the skid from the
front or rear of the unit without having to remove any
doors or side panels. See Figure 1 for fork openings.
The shipping brackets on front and rear of the unit must
be removed and discarded. The unit can now be lifted
straight up and the skid can be slid out from underneath.
Tip unit from left side only.
Failure to do so may result in injury due to unit
top-heaviness or compressor damage!
FIGURE 2A — UNIT ON LIFT
HANDLING UNIT AFTER REMOVAL FROM SKID
If a wide and tall enough opening exists, the I-TEC can be
moved as a complete assembled unit. If not, it is designed
to break down into two sections to allow it to pass through
a 36 inch wide door.
1. Depress & release both top & bottom door latches and
open doors.
2. Remove the doors by lifting straight up and off from
the hinge pins.
3.
Remove cabinet sides by first removing the four (4) sheet
metal screws from the front (leading edge) of the side
panel. The panel will not fall off. Swing the panel away
from the chassis 20 to 30 degrees & then pull forward
from the two (2) tabs supporting the rear edge.
4. On each side of the unit is a tie plate that secures
the top and bottom sections with four (4) cap bolts.
Using a ½ inch wrench or socket, remove these
screws from both plates and set aside.
5. If the unit is equipped with a CRV or ERV, you must
unplug the wire harness on the left-hand side of the
control box.
6.
A forklift or a lift rated for the load is required to lift
the top section off from the bottom base. Do not
attempt to do this manually. Failure to do so could
result in the unit tipping over & causing bodily injury
and/or damage to the unit.
7. The top section can be forked from either the RH
or LH side. See Figure 1 for fork openings.
8.
Carefully lift the top section straight up avoiding tipping.
9. Move the top section through the doorway and
place on flat surface free of debris.
10. The bottom base can now be moved through the
doorway the same way.
11. Reassemble the unit by reversing this procedure.
Manual 2100-549G
Page8 of 59
FIGURE 2B UNIT SIDE
ERV/CRV
HARNESS CONNECTION
(4) CAP BOLTS
FORK OPENING
(Visible after
removing tie plate)
É
É
É
(Covers entire width; shortened for
illustration purposes to show Fork Openings)
TIE PLATE
É
REQUIRED STEPS AFTER FINAL PLACEMENT
The compressor is secured to the base with two (2) bolts
for shipping. Although the unit will perform as
designed with the shipping bolts in place, there may be a
noticeable additional noise and vibration noted. To
obtain the lowest noise and vibration levels, remove the
shipping bolts after the unit is in its final operating
location. To gain access to the compressor, the
compressor access panel must be removed (Figure 9).
Once this panel is removed, the CRV/ERV air duct must
be removed. See Figure 6.
The air duct is removed by pulling it straight toward
you; there are no screws securing it in place. Both the
top and bottom slide toward you at the same time (pullhard). Once removed, the compressor is visible as well
as the tags on the shipping bolts (Figure 5).
After the compressor shipping bolts have been removed,
the CRV/ERV air duct can be slid back in place and the
compressor access panel attached.
MINIMUM INSTALLATION HEIGHT
The minimum installation height to the bottom of the
roof or fixed ceiling for ducted applications is 9 ft. 7 in.
This provides enough clearance to install the duct work.
See Figure 7A.
The IWS Series wall sleeve has a built-in vertical
adjustment to fit window sill heights from 31-34 inches.
If additional height is required, two riser platform
accessories are available. The IRP3 increases the unit
height by 3 inches (Figure 7B) and the IRP6 by 6 inches
(Figure 7C).
Several construction options are available for unit
installation of the IZ Series. Serviceability and filter
access must be considered before installing. See Figure
5D for required clearances and recommended service
access dimensions.
2"
1 11/16"
SECURING UNIT TO STRUCTURE
Shipped with the I-TEC unit is a wall mounting bracket
(screwed to shipping skid on backside of unit). This
bracket can be utilized to secure the top portion of the
unit to the wall using the appropriate field supplied
hardware based upon the material you are fastening to.
(There are several offset holes, sized to accept up to a
1/4" diameter fastener that will easily allow you to hit
studs on a framed wall.) See BRACKET SECTION
VIEW for locating this top wall bracket which will
need to be applied after the unit is located in the final
position.
Additional/optional mounting holes for up to a 3/8"
diameter fastener are also available in the backside of
the unit. These can be accessed by:
• removing the air filters for the uppermost set
• removing the compressor section service door for
the lower set
Refer to WOOD FRAMED INSTALLATION for
additional framing required to secure unit to wall.
The additional/optional mounting holes will require a
long extension to drive the fasteners.
SEISMIC CONSIDERATIONS
The I-TEC product features several locations for product
securement but all site conditions are different. Consult
with a licensed Seismic Engineer to advise of particular
needs when attaching the I-TEC unit to the structure.
WALL MOUNTING BRACKET LOCATION
43 3/8"
Ø1/4"
BRACKET
3/4"
1 1/2"
7/8"
94" FROM BOTTOM
OF BRACKET TO
FLOOR WITHOUT
RISER KIT
MIS-3029
Manual 2100-549G
Page9 of 59
Optional
Duct
BRACKET WALL SECTION VIEW
Ceiling
Supply Duct
Optional
Trim or
Box
Outside
Wall
Telescoping
Wall Sleeve**
Outside
Wall
Optional Top
Bracket
(4) optional Unit
Mounting holes
Sleeve Mounting
Hole Locations
Centered on
Opening
20
7
"
8
3
43
"
8
Centered
42-3/4" Min.
43-1/4" Max.
20 "
7
8
48" Min.
Grille
48-1/2" Max.
Centered
(4) optional Unit
Mounting holes
Unit
7
"
20
Floor
18 3/4
Right Side View
31" Min.
34" Max.
*
31" Min.
15
1
16
*
34" Max.
8"
"
20"
C
L
7 3/8
* Higher Sill Heights Acheivable With Base Kit.
** Separate telescoping sleeves available for different wall thicknesses.
Front (Wall Only) View
8
43
35"
8"
20"
7
"
8
17.5"
WOOD FRAMED INSTALLATION (for Wall Attachment)
41.75
Inner wall
(4) Upper
fastener holes
20"
20"
Room Floor Level
C
L
3"
6"
1
"
94
8
3
" 49
8
1
"
56
2
" 11 4
16
17
" 29
32
FLOOR MOUNTING HOLE
& CENTERLINES
MIS-2918 C
Manual 2100-549G
Page10 of 59
Unit
Floor
(4) lower fastener
holes
20.88
6.00
56.50
29.56 8.00
8.00 36.88
* Height dimension shown without
riser kit. If unit uses riser kit add
appropriate dimension to height.
Any heat pump is more critical of proper operating
charge and an adequate duct system than a straight air
conditioning unit. All duct work must be properly sized
for the design airflow requirement of the equipment.
Air Conditioning Contractors of America (ACCA) is an
excellent guide to proper sizing. All duct work or
portions thereof not in the conditioned space should be
properly insulated in order to both conserve energy and
prevent condensation or moisture damage. When duct
runs through unheated spaces, it should be insulated
with a minimum of one inch of insulation. Use
insulation with a vapor barrier on the outside of the
insulation. Flexible joints should be used to connect the
duct work to the equipment in order to keep the noise
transmission to a minimum.
The I-TEC series heat pump has provision to attach a
supply air duct to the top of the unit. Duct connection
size is 20 inches x 24 inches. The flanges are shipped
flat and must be bent upward using sheet metal flanging
pliers. The duct work is field supplied. See Figure 8 for
suggested attachment method.
Make sure to seal the slots in the bend-up flange at the
time of securing your ductwork to the flange. This can
be accomplished with either foil tape or caulk. Failing
to do so may cause air leakage/whistling of air.
FIGURE 8
SUPPLY DUCT CONNECTIONS
a floor mounted install (9'-9" with IRP3 riser & 10'-0"
with IRP6 riser). The ICX10 extends 28" above the unit
for a total height of 10'-2" for a floor mounted install
(10'-5" with IRP3 riser & 10'-8" with IRP6 riser).
The unit is equipped with a variable speed indoor
blower motor which increases in speed with an increase
in duct static pressure. The unit will therefore deliver
proper rated airflow up to the maximum ESP shown in
Table 1A. However, for quiet operation of the air
system, the duct static should be kept as low as
practical, within the guidelines of good duct design.
FILTERS
Two 2-inch throw away filters (24 x 30) and two 1inch throw away filters (12 x 20) are supplied with
each unit. The 2-inch filters slide into brackets on
both sides for the return air openings. The 1-inch
filters are in the cabinet doors for the vent (room air)
exhaust. If a CRV or ERV vent option is used, there
are two (2) additional ½" (8 x 17) washable filters
included with that option. See Figure 9 for specific
locations. The filters are serviced from the inside of
the building by opening the cabinet doors, and do not
require any tools to access.
FIGURE 9
FILTER LOCATION
24" X 30" X 2"
FILTERS
24"
20"
SUPPLY DUCT AND
FASTENERS TO BE
FIELD SUPPLIED
BEND THE PROVIDED
SUPPLY FRAME FLANGES
UP FOR DUCT INSTALLATION
MIS-2959
NOTE: Unit cabinet, supply air duct and duct free
plenum are approved for “0” clearance to
combustible material.
The I-TEC series heat pumps are designed for use with
free return (non-ducted) and either duct free with the use
of IPBDF Series Plenum Box (8" or 12") or a duct
supply air system.
The IPBDF Plenum Box mounts on top of the unit and
has both vertically and horizontally adjustable louvers on
the front discharge grille.
When used with a ducted supply, an ICX9 or ICX10
Cabinet Extension may be used to conceal the
ductwork above the unit to the ceiling. The ICX9
extends 20" above the unit for a total height of 9'-6" for
É
INDOOR
BLOWER
ACCESS
COMPRESSOR
ACCESS
ACCESS TO
WASHABLE
FILTERS
É
É
É
VENT
OPTION
É
ACCESS
12" X 20" X 1"
FILTERS
Manual 2100-549G
Page17 of 59
É
CONDENSATE DRAIN
There are two condensate drain connections from the
condenser drain pan (compressor area). These are visible
from the rear of the unit. Factory installed tubing
connects the two drains at a tee connection and then a
single drain hose with a barbed hose connector carries the
condensate to the draining option of your choice. Enough
tubing is provided to reach all drain options and can be
cut down in length.
The unit is shipped from the factory with the drain line on
the left-hand side as you look at the rear of the unit. The
tubing can be removed from the drain connections and
flipped for a right-hand drain. See Figure 10.
The drain can be routed directly through the floor or
through the wall. There are also two optional drain
locations in the lower rear back panel. See Figure 8.
The I-TEC design does not require a trap in the
condensate disposal tubing. Check your local codes to
see if a “P” trap is required.
For a stand pipe floor drain or through the wall, there is
adequate hose length to reach anything located behind the
unit. The lower rear portion of the cabinet is recessed
approximately 4 inches allowing room for a “P” trap to
be installed with the cabinet flush with the wall. Keep in
mind, the drain line must be able to be removed from the
unit if necessary to remove the unit from the wall.
Access plates are located on the rear of the unit for
servicing the drain trap. See Figure 10. If the drain line
is to be routed through an unconditioned space, it must
be protected from freezing.
The condensate drain line can also be routed back into the
unit through either the right-hand or left-hand optional
drain locations on the rear of the unit. The hole is covered
by insulation on the inside of the unit and will have to be
cut away. Located inside the unit, about 12 inches in from
the front on both the left and right side are drain holes in
the bottom of the base. These holes are covered with
insulation and are not visible. They are located very close
to the side panels and can be found by pressing down on
the insulation. Cut insulation away to expose the hole. A
drain trap can now be installed inside of the cabinet, and
the drain hose routed directly through the floor.
Once the I-TEC is installed, the rear drains exiting the
condenser section can be easily serviced with removal
of the pre-painted metal sides (lift-off doors, remove
four [4] screws to remove side).
If side access is not available, the drain lines and trap
can be serviced by removing either one of the drain
access panels on the rear of the unit (in the ventialtion
package area.) See Figure 10.
WITH NO VENT OPTION
To access the drain access panels in the rear of this
section, simply remove the front door/cover from the
box, and the plates are located in the rear of the box.
Manual 2100-549G
Page18 of 59
WITH COMMERCIAL ROOM VENTILATOR
1. Open hinged front doors.
2. Disconnect unit power to eliminate shock hazard.
3. Remove front cover/door of CRV vent package.
(Can leave filter access panels in place.)
4. Unplug wires coming in on left side from upper
unit section.
5.
Unplug two wire harness from front (intake) blower.
6. Remove two (2) screws securing front (intake)
blower and slide blower out of unit.
7. Remove four (4) screws that retian the partition
behind/beneath intake blower removed in Step #6.
8. Rear drain access panels are now visible on both
right-hand and left-hand sides in rear of box.
WITH ENERGY RECOVERY VENTILATOR
To access the rear drain access panels of this section:
1. Open hinged front doors.
2. Disconnect unit power to eliminate shock hazard.
3. Remove front cover/door of ERV vent package.
(Can leave filter access panels in place.)
4. Unplug wires coming in on left side from upper
unit section.
5.
Unplug heat recovery cassette on the side you wish
to access, and slide cassette out the front of the unit.
6. Remove two (2) screws securing partition on
outboard side of cassette and remove.
7. Rear drain access panels are now visible on both
right-hand and left-hand sides in rear of box.
FIGURE 10 — DRAIN LOCATIONS
(2) Unit Drains
Drain Access
Locations
8"
(2) Optional
Unit Drain
Entrances
3
"
4
3
" 8 3
WALL
7 3/16"
18 3/4"
MIS-2960 B
OPTIONAL FLOOR
MOUNTING HOLES
16 1/2"
(2)OPTIONAL
DRAIN HOLES
3
3
"
8
35"
40
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