Bard Q36H3-A, Q24H3-B, Q36H3-B, Q43H3-A, Q43H3-B Installation Instructions Manual

...
INSTALLATION INSTRUCTIONS
Q-TECTM SERIES
PACKAGED HEAT PUMP
Models:
Q24H3-A Q24H3-B Q24H3-C
Q30H3-A Q30H3-B Q30H3-C
Q36H3-A Q36H3-B Q36H3-C
Q43H3-A Q43H3-B Q43H3-C
Q48H3-A Q48H3-B Q48H3-C
Q60H3-A Q60H3-B Q60H3-C
Bard Manufacturing Company, Inc. Bryan, Ohio 43506
www.bardhvac.com
Manual No.: 2100-652A Supersedes: 2100-652 Date: 10-11-17
Page 1 of 42
CONTENTS
Getting Other Information and Publications ........ 3
Q-TEC Series General Information ........................... 4
Q-TEC Model Nomenclature ..................................... 4
Shipping Damage .................................................... 7
Unit Removal from Skid ........................................... 7
Handling Unit After Removal from Skid ..................... 8
General .................................................................. 8
Minimum Installation Height .................................... 8
Duct Work............................................................. 10
Filters .................................................................. 10
Fresh Air Intake .................................................... 11
Service Light ......................................................... 11
Condensate Drain .................................................. 11
Optional Rear Drain Kits ........................................ 11
Installation ................................................................. 18
Mounting the Unit ................................................. 18
Wiring – Main Power .............................................. 19
Wiring – Low Voltage .............................................. 19
Optional Climate Controls Sequence of Operation ..... 19
Low Voltage Connections ........................................ 20
General ................................................................ 20
Figures
Figure 1 Unit Dimensions .................................. 6
Figure 2 Air Seal on Bottom of Unit .................... 7
Figure 3 Removal of Unit from Skid.................... 7
Figure 4 Unit on Appliance Cart for Moving ......... 8
Figure 5 Installation With Duct-Free Plenum ....... 9
Figure 6 Ducted Application .............................. 9
Figure 7 Supply Duct Connections.................... 10
Figure 8 Filter Location ................................... 10
Figure 9 Optional Side Drain............................ 12
Figure 10 Standard Rear Drain .......................... 12
Figure 11 Rear Drain (Top View) ........................ 12
Figure 12A Optional Rear Drain Kit ......................13
Figure 12B Optional Rear Drain Kit ...................... 14
Figure 12C Optional Rear Drain Kit ...................... 15
Figure 12D Optional Rear Drain Kit ...................... 16
Figure 13A Unit Mounting – Method 1 .................. 17
Figure 13B Unit Mounting – Method 2 .................. 17
Figure 14
Figure 15 Component Location .......................... 19
Figure 16 Thermostat Plug Terminals ................. 21
Figure 17A T-Stat Wiring Diagram "X" Opt. ........... 22
Figure 17B
Figure 18 T-Stat Wiring Diagram "D" Opt. .......... 24
Figure 19 T-Stat Wiring Diagram "H" Option ....... 25
Figure 20 T-Stat Wiring Diagram "B" or "C" Opt. .. 26
Figure 21 Fresh Air Damper Removal ................. 31
Figure 22 QERV Removal .................................. 32
Figure 23 CO
Figure 24 Defrost Control Board ......................... 35
Figure 25 Control Disassembly ........................... 39
Figure 26 Winding Test ..................................... 39
Figure 27 Drip Loop .......................................... 39
Figure 28 Fan Blade Setting .............................. 40
Removing Locking Screws from Wheels .
T-Stat Wiring Diagram "X" Opt. w/Demand .
Controller ................................... 33
2
18
23
Start Up ....................................................................... 27
R-410A Refrigerant: General .................................. 27
Topping Off System Charge .................................... 27
Safety Practices .................................................... 27
Description of Standard Equipment ......................... 28
Optional CFM (Q36, Q42, Q48 and Q60 Only) ......... 28
Important Installer Note ......................................... 28
Phase Monitor ....................................................... 28
Three Phase Scroll Compressor Start Up Info. ......... 28
Service Hints ........................................................ 29
Mist Eliminator Service .......................................... 29
Vent Options ......................................................... 30
Sequence of Operation ........................................... 33
Pressure Service Ports ........................................... 34
Defrost Cycle .........................................................34
Troubleshooting .........................................................36
Solid State HP Control Troubleshooting Procedure .....36
Checking Temperature Sensor ..................................37
Troubleshooting ECM™ Blower Motors .....................38
Fan Blade Setting Dimensions .................................40
Refrigerant Charge ..................................................40
Tables
Table 1 Factory Built-In Electric Heat ......................4
Table 2 Electrical Specifications..............................5
Table 3 Operating Voltage Range ...........................19
Table 4 Wall Thermostats .....................................21
Table 5 Troubleshooting ........................................36
Table 6 Temp. vs Resistance of Temp. Sensor .........37
Table 7 Fan Blade Dimension ...............................40
Table 8 Indoor Blower Performance .......................40
Table 9 Cooling Pressure ......................................41
Table 10 Heating Pressure ......................................42
Manual 2100-652A Page 2 of 42
GETTING OTHER INFORMATION AND PUBLICATIONS
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.
1791 Tullie Circle, N.E. Atlanta, GA 30329-2305 Telephone: (404) 636-8400 Fax: (404) 321-5478
NFPA National Fire Protection Association
Batterymarch Park P.O. Box 9101 Quincy, MA 02269-9901 Telephone: (800) 344-3555 Fax: (617) 984-7057
Manual 2100-652A Page 3 of 42
Q-TEC SERIES GENERAL INFORMATION
Q-TEC MODEL NOMENCLATURE
Q 36 H 3 – A 10 X X V X X X
COIL OPTIONS
X – Standard
MODEL NUMBER
CAPACITY |
24 – 2 Ton 30 – 2½ Ton 36 – 3 Ton 43 – 3½ Ton 48 – 4 Ton 60 – 5 Ton
HEAT PUMP
REVISION
VOLTS & PHASE |
A – 230/208/60/1 B – 230/208/60/3 C – 460/60/3
FILTER OPTIONS
KW
0Z – 0KW 05 – 5KW 06 – 6KW 09 – 9KW 10 – 10KW 12 – 12KW 15 – 15KW
VENTILATION OPTIONS
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)
Nominal
KW
KW
5.0 5.0 20.8 17,065 3.75 18.0 12,799
6.0 6.0 14.4 20,478 4.50 12.5 15,359 6.0 7.2 20,478 5.52 6.9 18,840
9.0 9.0 21.7 30,717 6.75 18.7 23,038 9.0 10.8 30,717 8.28 10.4 28,260
10.0 10.0 41.7 34,130 7.50 36.1 25,598
12.0 12.0 28.9 40,956 9.00 25.0 30,717 12.0 14.4 40,956 11.04 13.9 37,680
15.0 15.0 62.5 36.1 51,195 11.25 54.1 31.2 38,396 15.0 18.0 51,195 13.80 17.3 47,099
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
BTUH KW
1-Ph
Amps
3-Ph
Amps
BTUH KW
3-Ph
Amps
BTUH KW
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 Circuit Dual 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
8 22 50 30 50 10 8 10 10
12 10 10
14 12 10
10 10
8 27 50 30 60 10 8 10 10
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. B Ckt. A Ckt. B Ckt. A Ckt. B Ckt. A Ckt. 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 brackets B Front wheels over edge C 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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