These publications can help when installing the air
conditioner or heat pump. They can usually be found
at a local library or can be purchased directly from the
publisher. Be sure to consult the most 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 Summer Manual N
Air Conditioning
Low Pressure, Low Velocity ............ ACCA Manual D or
Duct System Design Manual Q
Winter and Summer Air Conditioning
For more information, contact these publishers:
ACCA Air Conditioning Contractors of America
1712 New Hampshire Avenue
Washington, DC 20009
Telephone: (202) 483-9370
Fax: (202) 234-4721
ANSI American 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,
and Air Conditioning Engineers, Inc.
X – Barometric Fresh Air Damper (Standard)
B – Blank-off Plate
V – Commercial Ventilator – Motorized w/Exhaust
Spring Return
P – Commercial Ventilator – Motorized w/Exhaust
Power Return
R – Energy Recovery Ventilator w/Exhaust
X – 1" Fiberglass
(Standard)
F – 2" Fiberglass
P – 2" Pleated
COLOR OPTIONS
V – Platinum w/Slate
Front (Vinyl)
X – Beige paint
4 – Gray paint
CLIMATE CONTROL OPTIONS
X – None
D – Electronic/Prog/Man/Auto
H – Electronic/Prog/Man/Auto with CO
B – Electronic/Prog/Humidistat/BACNet
C – Electronic/Prog/Humidistat/BACNet/CO
1 – Phenolic coated
evaporator*
2
– Phenolic coated
condenser
3 – Phenolic coated
evaporator and
condenser coil*
*and reheat if
applicable
I
NTERNAL CONTROLS
X – Standard
• High Pressure Switch
• Low Pressure Switch
• Compressor Time Delay
E – Low Ambient Control
Q – Outdoor Thermostat
R – Low Ambient Control and
Outdoor Thermostat
2
2
TABLE 1
Factory Built-In Electric Heat
(See Table 2 for available electric heat by unit model)
These electric heaters are available in 230/208V units only.
These electric heaters are available in 480V units only.
At 240V At 208V At 480V At 460V
1-Ph
Amps
3-Ph
Amps
BTUHKW
1-Ph
Amps
3-Ph
Amps
BTUHKW
3-Ph
Amps
BTUHKW
3-Ph
Amps
BTUH
Manual 2100-652A
Page 4 of 42
TABLE 2
Electrical Specifications
No.
Field
Power
Circuits
1 or 2
1
1
1
1
1 or 2
1
1
1
1
1
1
1
1
1
1
1 or 2
1 or 2
1
1
1
1
1
1
1
1
1
1
1 or 2
1 or 2
1
1
1
1
1
1
1
1
1
1 or 2
1 or 2
1 or 2
1
1
1
1
1
1
1
1
1
1 or 2
1 or 2
1 or 2
1
1
1
1
Minimum
Circuit
Ampacity
22
47
72
17
35
44
10
19
23
27
52
77
19
37
46
55
13
22
26
31
27
52
77
81
20
38
47
51
14
23
28
28
31
57
81
83
26
44
53
53
13
22
27
27
35
60
85
85
28
47
56
56
15
24
28
28
46
71
96
96
34
60
60
17
31
31
MODEL
Q24H3-A0Z
A05
A10
Q24H3-B0Z
B06
B09
Q24H3-C0Z
C06
C09
Q30H3-A0Z
A05
A10
Q30H3-B0Z
B06
B09
B12
Q30H3-C0Z
C06
C09
C12
Q36H3-A0Z
A05
A10
A15
Q36H3-B0Z
B06
B09
B15
Q36H3-C0Z
C06
C09
C15
Q43H3-A0Z
A05
A10
A15
Q43H3-B0Z
B06
B09
B15
Q43H3-C0Z
C06
C09
C15
Q48H3-A0Z
A05
A10
A15
Q48H3-B0Z
B06
B09
B15
Q48H3-C0Z
C06
C09
C15
Q60H3-A0Z
A05
A10
A15
Q60H3-B0Z
B09
B15
Q60H3-C0Z
C09
C15
Rated
Volts &
Phase
230/208-111
230/208-311
460-3
230/208-111
230/208-3
460-3
230/208-1
230/208-3
460-3
230/208-1
230/208-3
460-3
230/208-1
230/208-3
460-3
230/208-1
230/208-311
460-3
Maximum size of the time delay fuse or 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.
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 KW that can operate with heat pump on is 10KW. Other 5KW energizes during emergency heat only.
Maximum KW that can operate with heat pump on is 9KW. Other 6KW energizes during emergency heat only.
Single CircuitDual Circuit
Maximum
External
Fuse or Ckt.
Brkr.
30
50
80
20
35
45
15
20
25
35
60
80
25
40
50
60
15
25
30
35
40
60
80
90
30
40
50
60
15
25
30
30
45
60
90
90
35
50
60
60
15
25
30
30
50
70
90
90
40
50
60
60
20
25
30
30
60
90
100
100
45
60
60
25
35
35
Field
Power
Wire Size
10
8
4
12
8
8
14
12
10
8
8
4
10
8
8
6
14
10
10
8
8
6
4
4
10
8
8
6
14
10
10
10
8
6
4
4
8
8
6
6
14
10
10
10
8
6
4
4
8
8
6
6
12
10
10
10
8
4
3
3
8
6
6
10
8
8
Minimum
Ground
Wire
10
10
8225030501081010
12
10
10
14
12
10
10
10
8275030601081010
10
10
10
10
14
10
10
10
10
10
8
8
10
10
10
10
14
10
10
10
10
10
8
8
10
10
10
10
14
10
10
10
10
8
8
8
10
10
10
10
12
10
10
10
10
8
8
8
10
10
10
10
10
10
Circuit
Ampacity
Ckt. A Ckt. BCkt. A Ckt. BCkt. A Ckt. B Ckt. ACkt. B
27315050404050
31335050454550
35
35
35
46
46
46
25
50
50
25
50
50
Maximum
External Fuse or
Ckt. Breaker
50
50
50
25
50
50
50
50
60
25
60
50
60
50
Field Power
Wire Size
8
8
8
8
10
8
8
8
10
8
8
8
8
8
8
8
8
8
8
8
Ground
Wire Size
101010
101010
10
10
10
10
10
10
10
10
10
10
10
10
10
10
Manual 2100-652A
Page 5 of 42
FIGURE 1
Unit Dimensions
Manual 2100-652A
Page 6 of 42
SHIPPING DAMAGE
Upon receipt of equipment, the carton should be
checked for external signs of shipping damage. The
skid must remain attached to the unit 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 and remove from the skid.
Check unit wheels to ensure that wheels are
locked before removing from skid. Extreme
caution must be taken to prevent injury to
personnel and damage to the unit.
FIGURE 2
Air Seal Under Q-TEC Unit
Air Seal
It is recommended that the unit not be removed from
the skid with a forklift since the air seal under the unit
could be damaged (see Figure 2).
The shipping brackets on each side of the unit must be
removed and discarded (see Figure 3-A). The return air
grille panel can be removed to provide a place to hold
the unit. The unit can be slid forward on the skid until
the front wheels hang over the edge of the skid (see
FIGURE 3
Removal of Unit from Skid
Figure 3-B). The unit can be tipped forward and slid
down the edge of the skid until the front wheels touch
the ground (see Figure 3-C). The wheels will not roll.
They are shipped from the factory locked so they will
not roll. The back of the skid will have to be held down
to keep it from tipping up. The skid can be slid out
from under the unit. The unit can then be set upright.
Hold skid
down
A Shipping bracketsB Front wheels over edgeC Front wheels on floor
Manual 2100-652A
Page 7 of 42
HANDLING UNIT AFTER REMOVAL
FROM SKID
WARNING
be slid under the wheels of the unit. The strap of the
appliance cart should be placed around the unit and
strapped tightly. Help will be required to tip the unit
back onto the cart. The unit can be leaned far enough
back to be rolled through the door. Be careful when
setting the unit back up to keep from damaging the unit.
Exercise extreme caution when pushing the
unit on the rollers. Handle and push from the
lower 1/3 of the unit. Insure that debris is not
on the oor where the unit is to be moved on
the rollers. Failure to do so could result in the
unit tipping over and causing bodily injury and/
or damage to the unit.
The unit will have to be turned sideways and removed
from the skid to fit through a 36" doorway. If the door
height allows, the unit can be slid sideways through the
door.
If the unit cannot be slid through the door, then the
unit will have to be put on a cart and tipped down
to roll through the door. It is recommended that an
appliance cart be used with a strap to hold the unit on
the cart. The wheels of the unit must be locked. If the
wheels were allowed to roll, the unit could roll off the
cart. The unit should always be carted from the left side. This is the side where the compressor is located
ee Figure 4). The blade of the appliance cart should
(s
FIGURE 4
Unit on Appliance Cart
Q-TEC Unit
(Right Side)
Strap
Appliance
Cart
GENERAL
The equipment covered in this manual is to be installed
by trained, experienced service and installation
technicians.
A QWS-Series wall sleeve supplied as a separate
accessory must be ordered and installed with Q-TEC
unit.
The unit is designed for use with or without duct work.
For use without duct work, Plenum Box QPB42 is
recommended.
These instructions explain the recommended method
to install the air cooled self-contained unit and the
electrical wiring connections to the unit.
These instructions and any instructions packaged with
any separate equipment required to make up the entire
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 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.
Compressor
Manual 2100-652A
Page 8 of 42
MINIMUM INSTALLATION HEIGHT
The minimum installation height of the unit with a Free
Blow Plenum is 8' 6". This provides enough clearance
for the plenum to be removed (see Figure 5).
The minimum installation height for ducted
applications is 8' 4-1/2". This provides enough
clearance to install the duct work (see Figure 6).
FIGURE 5
Installation with Duct-Free Plenum
FIGURE 6
Ducted Application
Manual 2100-652A
Page 9 of 42
DUCT WORK
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 1" 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.
When used with a ducted supply, a QCX Cabinet
Extension can be used to conceal the duct work above
the unit to the ceiling. This extends 20" above the unit
for a total height above the floor of 10'-7/8". 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 air flow up to the maximum ESP shown in Table
9. 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 1" throw away filters [(1) 16x16 and (1) 16x20]
are supplied with each unit. The filters slide into filter
brackets (see Figure 8).
The Q-TEC series heat pump has provision to attach a
supply air duct to the top of the unit. Duct connection
size is 12" x 20". The duct work is field supplied
and must be attached in a manner to allow for ease
of removal when it becomes necessary to slide the
unit out from the wall for service. See Figure 7 for
suggested attachment method.
FIGURE 7
Supply Duct Connections
Supply duct
(field supplied)
Attachment
screws (field
supplied)
Room side of
Q-TEC unit
Duct flange provided
with unit
The filters are serviced from the inside of the building
by opening the hinged door. This door is attached by
T-25 torx screw and one locking latch.
The internal filter brackets are adjustable to
accommodate 2" filters. The tabs for the 1" filters
must be bent down to allow the 2" filters to slide in
place.
FIGURE 8
Filter Location
Filters
NOTE: Unit cabinet, supply air duct and duct free
plenum are approved for “0” clearance to
combustible material.
The Q-TEC series heat pumps are designed for use with
free return (non-ducted) and either free blow with the
use of QPB Plenum Box or a duct supply air system.
The QPB and QPBHW Plenum Box mounts on top
of the unit and has both vertically and horizontally
adjustable louvers on the front discharge grille.
For hot water coil option, a QPBHWxx-F for free blow or
QPBHWxx-D for ducted airflow is used.
Manual 2100-652A
Page 10 of 42
Return Air Grille
FRESH AIR INTAKE
This unit is equipped with a fresh air damper assembly.
The damper blade is locked in the closed position
when the unit is shipped from the factory. To allow
the damper to operate, remove the two plastic locking
pins, one on each end of the blade. This will allow
for maximum fresh airflow. The damper blade will
now open when the indoor blower is operating. If less
than maximum fresh airflow is required, re-insert the
plastic pins to limit damper blade opening to desired
level. Two extra pins are provided (taped to the inside
of the assembly) which may be used to hold the blade
in some position other than minimum or maximum
position. This fresh air assembly is located in the
rear of the unit and to gain access to make these
adjustments remove the air filter service door.
The rear drain can be used with wall thickness of up
to 10" where a water trap can be installed between the
unit and the interior wall (see Figure 10). The trap
cannot extend beyond the edge of the unit or it will
interfere with the wall mounting bracket. The drain
can be routed through the floor or through the wall.
If the drain is routed through the wall, the drain line
must be positioned such that it will not interfere with
the sleeve flange or the grille (see Figure 11). If the
drain is to be routed through an unconditioned space,
it must be protected from freezing.
OPTIONAL REAR DRAIN KITS
Optional Rear Drain Kit, Bard Model QCDS48A, is also
available for these products. The optional rear drain
kit offers multiple benefits that include the following:
All capacity, efficiency and cost of operation
information as required for Department of Energy
“Energyguide” Fact Sheets are based upon the fresh
air blank-off plate in place and is recommended for
maximum energy efficiency.
The blank-off plate is available upon request from the
factory and is installed in place of the fresh air damper
shipped with each unit.
For details on energy recovery ventilation see page 30.
SERVICE LIGHT
The unit is equipped with a service light which signals
the user that service is required. The light is located
in the upper control panel and is visible only when the
hinged service/filter access door is open.
The Service Unit light indicates that the unit has
been shut off by a high or low pressure device. This
indicates that the unit needs to be serviced. See
Sequence of Operation for details.
CONDENSATE DRAIN
There are two drain connections on the unit. The rear
drain is the primary drain, and is located on the right
lower rear panel of the unit. The optional side drain is
located on the bottom right side of the unit. The side
drain is shipped with a plug installed.
• Allows unit to be rolled away from the sleeve
without having to disconnect any hard plumbing
connections.
• Allows indoor coil condensate to be easily
connected to Rear Drain Box while bypassing the
outdoor coil drain pan. This aids in minimizing
the potential for biological growth to occur by
minimizing the standing water and exposing it to
warm temperatures.
See Figures 12A, 12B, 12C and 12D.
The drain box permanently mounts onto the wall sleeve
and is then either piped directly outdoors, or can be
piped vertically. The Q-TEC unit is then equipped with
fittings on the rear of the unit that slide into the drain
box as it is wheeled towards the wall sleeve.
NOTE: Models equipped with a refrigerant subcooler in
the lower drain pan may experience a 2-3% decrease
in cooling performance and efficiency when the indoor
condensate is routed around the outdoor coil drain
pan/subcooler assembly. Unit rated performance and
efficiency are with the indoor condensate routed to the
outdoor coil pan.
There is also a heated version of the rear drain box
available (Model #QCDS48H) for installation in
northern climates where freezing may occur.
The side drain requires a water trap for proper drainage
(see Figure 9). The drain can be routed through the
floor or through the wall. If the drain is to be routed
through an unconditioned space, it must be protected
from freezing. The drain line must be able to be
removed from the unit if it is necessary to remove the
unit from the wall. When the side drain is used, the
plug must be removed and installed in the rear drain
outlet.
Manual 2100-652A
Page 11 of 42
FIGURE 9
Optional Side Drain (Side View)
Q-TEC UNIT
FIGURE 10
Standard Rear Drain
FIGURE 11
Rear Drain (Top View)
Drain Line
Sleeve
Water
Trap
Wall (maximum
10" for rear drain)
Couplings not
shown but
recommended
for ease of
removability for
service
Wall
Bracket
Unit
Manual 2100-652A
Page 12 of 42
MIS-2469
DRAIN BOX
WALL SLEEVE
OVERFLOW TUBE
CAULK AROUND TUBE
FIGURE 12A
Manual 2100-652A
Page 13 of 42
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