B&D HSS BDAH-01 User manual

®
1 TON 2 TON 3 TON 4 TON 5 TON
HSS AIR HANDLER INSTALLATION MANUAL
WWW.BDMFGINC.COM
LET US BE YOUR HEATING AND COOLING HYDRONIC SOLUTION
BY B&D MFG., INC.
®

TABLE OF CONTENTS
General Instructions………………………………………………………………………. 3
Warranty Information…………………………………………………………………….… 3
Terms of Limited Warranty Information………….…………………………………….… 3
Safety Considerations..…………...………………………………………………………. 4
Installation Precautions…….………..……………………………………………………. 4
Air Distribution Duct Information………...……………………………………...……….. 5
Electrical Wiring Information……………………………………………………………… 5
Mounting the Air Handler……..……..……………………………………………………. 5
Pre Start –Up………………………………………………………………………………. 6
Start-up & Maintenance .…………………………………………………………………. 6
Preventative Maintenance..………………………………………………………………. 6
Air Handler Unit Information………………………………………………………………. 7
Air Handler Unit Access…………...………………...……………………………………. 8
Heat Strip Installation Procedure…………………………..…………………………….. 9
Emergency Heat Sequence of Operation.……………………………………………. 10
Electrical Data Information All Units……………………………………………………... 11
Air Handler Piping Diagram & Piping Connections…………………………………….. 12
1 Ton, 2 Ton Wiring Schematic….………………………………...…………………….. 13
3 Ton, 4 Ton, 5 Ton Wiring Schematic………………………………………………….. 14
1 Ton, 2 Ton Speed Lug Terminal Lug Assignment…………….…...………………… 15
3 Ton, 4 Ton, 5 Ton Speed Lug Terminal Lug Assignment………...………………… 16
Additional 24V Source for 1 Ton, 2 Ton Units………………………………………….. 17
Additional 24V Source for 3 Ton, 4 Ton Unit & 5 Ton Units……………………...….. 18
Wiring HSS® Air Handler to the HSS® Buffer Tank…..………………………………. 19
Wiring HSS® Air Handler to other Water/Water Equipment.…………………………. 20
1 Ton Cooling Data………………...……………………………………………………… 21
1 Ton Heating Data….…………………………………………………………………….. 22
1 Ton Electric Heat Strip Data…….……………………………………………………… 22
2 Ton Cooling Data………………………………………………………………………… 23
2 Ton Heating Data………………………………………………………………………... 24
2 Ton Electric Heat Strip Data.…………………………………………………………… 24
3 Ton Cooling Data………………...……………………………………………………… 25
3 Ton Heating Data….…………………………………………………………………….. 26
3 Ton Electric Heat Strip Data…….……………………………………………………… 26
4 Ton Cooling Data………………………………………………………………………… 27
4 Ton Heating Data……………………………………………………………………...… 28
4 Ton Electric Heat Strip Data.……………………………………………………....…… 28
5 Ton Cooling Data………………………………………………………………………… 29
5 Ton Heating Data………………………………………….…………………………….. 30
5 Ton Electric Heat Strip Data.…………………………………………………………… 30
Boiler Heating Data 1 & 2 Ton Unit.….………………………………………………….. 31
Boiler Heating Data 3 & 4 Ton Unit.….………………………………………………….. 32
Boiler Heating Data 5 Ton Unit.……....………………………………………………….. 33
Company Contact Information……………………………………………………………. 34
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com
2

GENERAL
B&D Mfg., Inc. assumes no responsibility for equipment installed in violation of any code requirement. These
instructions give information relative to the installation of the HSS® Air Handler units only. For other related
equipment refer to the proper instructions.
Altering the product or replacing parts with non authorized factory parts voids all warranty or implied warranty and
may result in adverse operational performance and/or a possible hazardous safety condition to service personnel
and occupants. Company employees and/or contractors are not authorized to waive this warning.
Material in this shipment has been inspected at the factory and released to the transport agency in good
condition. When received, a visual inspection of all HSS® Air Handler units should be made immediately. Any
evidence of apparent damage should be noted on the delivery receipt and the material inspected in the presence
of the carrier’s representative. If damage is found, a claim should be filed against the carrier immediately.
B&D Mfg., Inc. reserves the right to discontinue, make changes to, and add improvements upon its products at
any time without public notice or obligation. The descriptions and specifications contained in this manual were in
effect at printing. Some illustrations and information in the installation guide may not be applicable to your unit.
WARRANTY
B & D Mfg., Inc. warrants for a period of (36) months from the date of purchase that all HSS® Air Handler Models
are free from defects in materials or workmanship.
You must contact the Warranty Department at B&D Mfg., Inc. for a Return Authorization Form. The alleged
defective product must be returned to B&D Mfg., Inc. for inspection via prepaid freight. Defective parts will be
repaired or replaced at the manufacturer’s discretion. No allowance for labor or property damage is implied.
This warranty applies only to the HSS® Air Handler and does not include any other products or materials
furnished by the installer. This warranty does not cover defects caused by adhere to local building codes and
following good industry standards. The manufacturer does NOT WARRANT equipment subjected to abuse. Any
abuse can void warranties.
TERMS OF LIMITED WARRANTY
Limited Warranty is only applicable to products installed for use in ground source heat pump systems using clean
potable water. Complete unit replacements are not covered, defective parts will be repaired and/or replaced at the
Manufacturer’s discretion. Limited Warranty shall not apply if serial number or data plates have been removed or
altered. Warranty will be null and void. Limited Warranty shall not apply if products are not installed and
maintained according to instructions in the product installation manual. Replacement and/or factory repaired parts
are warranted only for the remainder of the original warranty period. B&D Mfg., Inc. does not warrant products
that have been modified from original design. Any product returned with design deviations will null and void any
and all warranties. B&D Mfg., Inc. is not responsible for any labor, shipping and transportation costs. In no event
will liability exceed the purchase price of the product.
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com
3
NOTE: Read the entire instruction manual before starting the installation.
HSS AIR HANDLER
INSTALLATION INSTRUCTIONS
BY B&D MFG., INC.
®

4
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com
SAFETY CONSIDERATIONS
Installing and servicing of air conditioning and heating equipment can be hazardous due to system pressures and
electrical components. Only trained, qualified personnel should install, start-up and service this equipment.
Untrained personnel can perform basic maintenance functions such as cleaning coils or cleaning and replacing
filters. All other operations should be performed by trained service personnel.
When working on the equipment, observe precautions in the literature, tags, stickers and labels attached to the
equipment and to any other safety precautions that apply.
When the HSS® Air Handler is operating, some components are operating at high speeds. Personal injury can
result from touching these items with any object. All electrical and service access panels must be returned and
secured in their proper place. Clear surrounding area of all tools, equipment and debris. Check the entire unit to
ensure it's cleanliness.
Follow all safety codes. Wear safety glasses and work gloves.
INSTALLATION PRECAUTIONS
Installation of the HSS® Air Handler should only be performed by a licensed contractor to ensure proper
installation and the safety of the installer. The following are some precautions to be followed for typical
installations.
 Always use proper tools and equipment.
 No wiring or other work should be attempted without first ensuring that the fan coil is completely disconnected
from the power source and locked out. Always verify that a good ground connection exists prior to energizing
any power sources.
 Always review the nameplate on each unit for proper voltage and control configurations. This information is
determined from the components and wiring of the unit and may vary from unit to unit.
 Units must be installed level to ensure proper drainage and operation.
 Check unit prior to operation to ensure that the condensate water will drain toward the drain connection. An
overflow drain or an overflow switch installed in the HSS® Air Handler may be required as a back up to a
clogged primary drain.
 Be sure that the drain pan is free from foreign material prior to start up.
 Check filter media installation to ensure that it is installed correctly. Use the directional arrows or other
information on the filter to determine the proper flow direction.
 Ensure that the air distribution system does not exceed the external static rating of the unit.
WARNING: When the HSS® Air Handler unit is in operation, components are rotating at high speeds.
AVERTISSEMENT: Lorsque l'unité de traitement d'air HSS® est en marche, les composants tournent à grande
vitesse.
NOTE: It is important at this point to consider noise and vibration. If this installation is in a noise sensitive area
then placement of resilient isolators or other means of sound deadening may be necessary. These fan coil units
are designed for quiet operation, however, all air conditioning equipment will transfer some amount of noise to the
conditioned space. This should be taken into consideration when planning the location of the equipment as well.

5
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com
AIR DISTRIBUTION DUCTS
All duct work must be installed in accordance with National Fire Protection Association Codes 90A and 90B.
Ducts should be adequately insulated to prevent condensation during the cooling cycle and to minimize heat loss
during the heating cycle. The manufacturer will not be responsible for misapplied equipment. Flex duct should be
attached at the exhaust duct flanges to reduce sound and vibration. Refer to page 5 for the location of the exhaust
duct flanges.
WARNING: The unit must not be operated under any circumstances without an air filter in place.
AVERTISSEMENT: L'appareil ne doit en aucun cas être utilisé sans filtre à air en place.
ELECTRICAL
All wiring must comply with local and national code requirements. Units are provided with wiring diagrams and
name plate data to provide information required for necessary field wiring. Knockouts are provided on the cabinet
for connection of power supply. The HSS® Air Handlers are provided with a Class 2 transformer or 24-volt control
circuits.
WARNING: Field installation must be wired in strict accordance with the wiring diagram that is supplied with the
unit. Failure to do so could result in damage to components and will void all warranties.
AVERTISSEMENT: L'installation sur site doit être câblée en stricte conformité avec le schéma de câblage
fourni avec l'unité. (Ne pas le faire) pourrait endommager les composants et annulera toutes les garanties.
WARNING: Only use electric heat strip components provided by B&D Mfg., Inc. The electric heat strip
components were specially designed for the HSS® Air Handler. Any use of different components may not be a
compatible fit and may cause harm to the unit and will void all warranty.
AVERTISSEMENT: N'utilisez que des composants de bande chauffante électrique fournis par B&D Mfg., Inc.
Les composants de la bande chauffante électrique sont spécialement conçus pour le système de traitement d'air
HSS®. Toute utilisation de différents composants peut ne pas être compatible et causer des dommages
à l'appareil et annulera (toute) la garantie.
MOUNTING
It is important to ensure that the HSS® Air Handler is securely mounted and the structure is sufficient to support
the weight of the equipment. All anchors for mounting the equipment must be placed and sized to ensure a safe
and durable installation. See page 5 for hanging weights of the HSS® Air Handler units.
The HSS® Air Handler unit can only be located in a Vertical position, with a minimum clearance of 24 inches from
the Blower Access Panel side of the Air Handler to avoid any obstruction. This clearance will allow blower and
motor removal. The unit can be shelved in air or placed directly on the floor.
Location of the HSS® Air Handler unit will vary depending on the following: length of duct runs, usable floor space,
serviceability and accessibility to the unit, minimizing structural changes, location of heating/cooling source, and
available space in mechanical room.
NOTE: When installing any Air Handler over a finished ceiling and/ or living area, installation of a secondary drain
pan under entire unit is recommended to avoid damage to ceiling.

6
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com
MOUNTING (Continued)
WARNING: When unit is installed over a finished ceiling and/ or living area, building codes may require a field
supplied secondary condensate pan to be installed under the entire unit. Some localities may allow the alternative
of running a separate secondary condensate line or applying a field mounted condensate overflow switch.
Consult local codes for additional restrictions.
MISE EN GARDE: Lorsque l'appareil est installé au-dessus d'un plafond fini et / ou d'une pièce (à vivre)
habitable, les codes du bâtiment peuvent exiger l'installation d'une cuvette de condensat secondaire sous toute
l'unité (installation sur place). Certaines localités peuvent permettre l'alternative d’ajouter une ligne de condensat
secondaire séparée ou d'installer un interrupteur de trop-plein de condensat (installation sur place). Consulter
les codes (locaux) régionaux pour les restrictions supplémentaires.
PRE START-UP
Before start-up, all of the components should be given a thorough check. Optimal operation of this equipment
requires cleanliness. Often after installation of this equipment additional construction activities occur. Care must be
taken to protect the equipment from debris during these construction phases. All access panels and filters must be
in place before operation of the units.
START-UP AND MAINTENANCE
Fan: The fan should be inspected and cleaned, in conjunction with maintenance of the motor and bearings. It is
important to keep the wheels clean in order to avoid imbalance and vibration.
Motor: Check motor connections to ensure that they are secure and made in accordance with the wiring diagram.
The blower motor should be cleaned annually.
Filter: The air filter should be cleaned or replaced every 30 days or more frequently if severe conditions exist.
Always replace the filter with the same type as originally furnished.
Coil: Any dust or other contaminants which accumulate on the heat transfer surfaces interferes with the air flow
and impairs heat transfer. The coil must be kept clean by any of the following methods:
1. Cleaning with low pressure compressed air.
2. Flushing or rinsing with water (a detergent is advisable for greasy surfaces).
Drain Piping: The condensate drain lines must be installed with adequate slope away from the unit to assure
positive drainage. Since the drain pain is located on the suction side of the blower, a negative
pressure exists at the drain pan and a minimum trap of 1-1/2 inches must be provided to the drain
line to assure proper drainage. The drain should always be:
1. Connected or piped to an acceptable disposal point sloped away from the unit
2. Checked before summer operation
3. Periodically checked during summer operation
WARNING: The HSS® Air Handler does not come with primary and secondary drain plugs installed.
AVERTISSEMENT: Le système de traitement d'air HSS® n'est pas équipé de bouchons de vidange primaire et
secondaire
PREVENTATIVE MAINTENANCE
To achieve maximum performance and service life of each piece of equipment a formal schedule of regular
maintenance should be established.
It is also recommended to have a service contractor perform a system check in the spring for the cooling season,
and in the fall for heating season.

7
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com
MODEL # APPROX WT (LBS) DIMENSIONS
BDAH-01 100 23”W x 24”H x 28”D
BDAH-02 105 23”W x 24”H x 28”D
BDAH-03 136 28”W x 30”H x 31”D
BDAH-04 146 28”W x 30”H x 31”D
BDAH-05 165 28”W x 30”H x 31”D
HSS® AIR HANDLER UNIT INFORMATION
HIGH QUALITY
SWIVEL CONNECTIONS
1TON, 2TON & 3TON = 1” INLET & OUTLET
4TON & 5TON = 1-1/4” INLET & OUTLET
Front Side
OPTIONAL HEAT STRIP ENCLOSURE
MULTI-SPEED ECM BLOWER
ELECTRICAL CONTROL PANEL
STANDARD AIR FILTER
1TON & 2TON = 18” x 22” x 1”
3TON, 4TON & 5TON = 25” x 25” x 1”
EASY ACCESS AIR FILTER
FULLY INSULATED CABINET
HSS® Air Handler with Left Side Configuration Shown
HIGH VOLTAGE PORT
(HEAT STRIP)
LOW VOLTAGE PORT
(THERMOSTAT)
HIGH VOLTAGE PORT
(BLOWER MOTOR)
EXHAUST DUCT FLANGES
1TON & 2TON = 12” x 12” (1” LIP)
3TON, 4TON & 5TON = 14” x 14” (1” LIP)
INTAKE DUCT FLANGES
1TON & 2TON = 17” x 21” (1” LIP)
3TON, 4TON & 5TON = 24” x 24” (1” LIP)
COIL CONDENSATE PORTS
3/4” PRIMARY
3/4” SECONDARY
4 ROW COOLING / HEATING COIL
BDAH- E- 1
HSS® AIR HANDLER MODEL NUMBER INFORMATION
TONNAGE
01 = 1 TON
02 = 2 TON
03 = 3 TON
04 = 4 TON
05 = 5 TON
MOTOR
TYPE
E = ECM
LEFT/RIGHT RETURN
CONFIGURATION
A = Le (Standard)
B = Right
VOLTAGE
1 = 240V / 208V
60Hz / 1Phase
KW
00 = None
03 = 3KW
05 = 5KW
10 = 10KW
15 = 15KW
CFM
05 = 500CFM 1 TON
09 = 950CFM 2 TON
13 = 1350CFM 3 TON
17 = 1750CFM 4 TON
21 = 2150CFM 5 TON
MAX KW /UNIT
1 TON - 3KW
2 TON - 5KW
3 TON - 10KW
4 TON - 10KW or 15KW
5 TON - 10KW or 15KW
Air Flow Direcon
Conguraon
U = Up ow (Standard)
D = Down ow
H = Horizontal Flow
NOTE: Backup Heat not available on Horizontal Flow Units
NOTE: This is the Side the
Filter will be Located on.

8
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com
HSS® AIR HANDLER UNIT ACCESS
FRONT ACCESS PANEL
ACCESS PANEL SCREW
HEAT STRIP ENCLOSURE
CONTROL PANEL COVER
HEAT STRIP ENCLOSURE COVER
FAN MOTOR LINE VOLTAGE ACCESS
CONTROL PANEL COVER SCREW
INLET CONNECTION
1TON, 2TON & 3TON = 1”
4TON & 5TON = 1-1/4”
3/4” PIPE COIL CONDENSATE OUTLET
CONTROL PANEL ENCLOSURE
THERMOSTAT WIRING ACCESS
CONTROL PANEL HIGH VOLTAGE DIVIDER
OUTLET CONNECTION
1TON, 2TON & 3TON = 1”
4TON & 5TON = 1-1/4”
HEAT STRIP LINE VOLTAGE ACCESS

9
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com
ELECTRIC HEAT STRIP INSTALLATION PROCEDURE
WARNING: Only use electric heat strip components provided by B&D Mfg., Inc. The electric heat strip components
were specially designed for the HSS® Air Handler. Any use of different components may not be a compatible fit
and may cause harm to the unit and will void all warranty.
AVERTISSEMENT: N'utilisez que des composants de bande chauffante électrique fournis par B&D Mfg., Inc.
Les composants de la bande chauffante électrique sont spécialement conçus pour le système de traitement d'air
HSS®. Toute utilisation de différents composants peut ne pas être compatible et causer des dommages à
l'appareil et annulera (toute) la garantie.
1. Disconnect power and lock out.
2. Remove bolt (8.1) from the front access panel (1)
3. Remove bolt (8.2) from the blower access panel (2)
4. Remove both access panels (1 & 2) by lifting up, then out and down.
5. Remove both inner plenum covers (4a & 4b), 4 bolts each (8.3 & 8.4).
6. Remove the 4 heat strip assembly cover screws (8.5) and heat strip assembly cover (6)
7. Press in the 4 heat strip coil frame end caps (7) into the heat strip frame support (9).
8. Slide heat strip assembly (5) through the heat strip access hole using the side access hole for assistance in lining up the
heat strip frame ends, into the 4 coil frame end caps (7)
9. Bolt heat strip assembly (5) to the internal plenum (3) using the 4 bolts (8.3) from inner plenum cover (4a).
10. Bolt the inner plenum front cover (4b) onto the inner plenum using the 4 cover screws (8.4).
11. Plug in the 24V, 4 position control plug (10) to control box 4 position plug receptacle (11).
12. A separate 208V/240V power source is needed to supply power to the heat strip from a/# power source
13. After the heat strip is powered replace the heat strip assembly cover (6) with the 4 screws (8.5).
14. Replace both access panels (1 & 2) with bolts (8.1 & 8.2).
NOTE: Inner plenum cover (4a) is no longer needed
8.5 6 10 5 7
8.3 4a 8.4
4b
3 9
11
2
1
FRONT ACCESS PANEL BLOWER ACCESS PANEL
8.1 8.2
HEAT STRIP ACCESS HOLE
SIDE ACCESS HOLE

Emergency Heat Sequence of Operation on “W” Call
15KW
“W” Call comes from the thermostat for emergency heat:
 Fan comes on w/30 second ramp up time to full speed, which is factory programmed into the ECM motor.
 First 5kw of heat strip come on immediately with the “W” call.
 After 30 seconds, the second 5kw of the heat strip, comes on through “Heat Timer 2” which is factory preset but can be field
adjustable from .5 – 35 minutes.
If within 5 minutes of the initial “W” call, the call is satisfied the heat strip will shut down w/30 second ramp down speed which is
factory programmed into the ECM Motor.
 If after 5 minutes of the initial “W” call, the call is not satisfied, the third 5kw of the heat strip will come on through “Heat
Timer 3” which is factory preset for a 5 minute delay but can be field adjustable from .5 – 35 minutes.
When the “W” call is satisfied:
 The entire 15kw heat strip will shut down.
 The fan will shut down w/30 second ramp down to off
10KW
“W” Call comes from the thermostat for emergency heat:
 Fan comes on w/30 second ramp up time to full speed, which is factory programmed into the ECM motor.
 First 5kw of heat strip come on immediately with the “W” call.
 After 30 seconds the second 5kw of the heat strip comes on through “Heat Timer 2” which is factory preset but can be field
adjustable from .5 – 35 minutes.
When the “W” call is satisfied:
 The entire 10kw heat strip will shut down.
 The fan will shut down w/30 second ramp down to off
5KW
“W” Call comes from the thermostat for emergency heat:
 Fan comes on w/30 second ramp up time to full speed, which is factory programmed into the ECM motor.
 The heat strip comes on immediately with the W call
When the “W” call is satisfied:
 The entire 15kw heat strip will shut down.
 The fan will shut down w/30 second ramp down to off
Fan Sequence of Operation on “Y” Call
“Y” Call comes from the thermostat for heat or cooling:
 Fan timer is activated w/30 second delay which is factory preset but can be field adjustable from .5 – 35 minutes.
 After the timer delay of 30 seconds, the fan comes on w/30 second ramp up time to full speed, which is factory programmed
into the ECM motor.
When the “Y” call is satisfied;
 The fan will shut down w/30 second ramp down to off.
10
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com
EMERGENCY HEAT SEQUENCE OF OPERATION

Model No Heat Strip Motor HP / Load Amp
MCA
(Minimum Circuit Ampacity)
MOP
(Maximum Overcurrent Protection)
Model BDAH-01 1/3hp / 2.6 3.25 15
Model BDAH-02 1/3hp / 2.6 3.25 15
Model BDAH-03 1/2hp / 4.6 5.75 15
Model BDAH-04 1/2hp / 4.6 5.75 15
Model BDAH-05 1hp / 7 8.75 15
11
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com
ELECTRICAL DATA INFORMATION SHEET
All Models without Emergency Backup Heat
Model BDAH-02 5kw Emergency Heat Strip
Model BDAH-01 3kw Emergency Heat Strip
Model BDAH-03 10kw Emergency Heat Strip
Model BDAH-04 10kw or 15kw Emergency Heat Strip
Model BDAH-05 10kw or 15kw Emergency Heat
Model With Heat Strip KW / Load
MCA
(Minimum Circuit Ampacity)
MOP
(Maximum Overcurrent Protection)
Model BDAH-01 3KW / 12.5 15.63 20
Model With Heat Strip KW / Load
MCA
(Minimum Circuit Ampacity)
MOP
(Maximum Overcurrent Protection)
Model BDAH-02 5KW / 20.8 26 30
Model With Heat Strip KW / Load
MCA
(Minimum Circuit Ampacity)
MOP
(Maximum Overcurrent Protection)
Model BDAH-03 10KW / 41.7 52.125 60
Model With Heat Strip KW / Load
MCA
(Minimum Circuit Ampacity)
MOP
(Maximum Overcurrent Protection)
Model BDAH-04 10KW / 41.7 52.125 60
Model BDAH-04 15KW / 62.5 78.125 80
Model With Heat Strip KW / Load
MCA
(Minimum Circuit Ampacity)
MOP
(Maximum Overcurrent Protection)
Model BDAH-05 10KW / 41.7 52.125 60
Model BDAH-05 15KW / 62.5 78.125 80

Hydronic Pumps
(115V) W to W
Pumps
(230V)
Supply Valve
Zone 1
Supply Valve
Zone 2
Return Valve
Zone 1
Return Valve
Zone 2
Out Load
Water to Water
Heat Pump
In Load
Out Load
In Load
HSS®BUFFER TANK QT®FLOW
CENTER
To Loop Field
From Loop Field
HSS®AIR HANDLER
Out Load
In Load
HSS®AIR HANDLER
Out Load
In Load
INLINE CHECK VALVE
(INCLUDED WITH MANIFOLD PURCHASE)
FILL / FLUSH PORT
(NOT INCLUDED WITH MANIFOLD PURCHASE)
HSS® AIR HANDLER PIPING DIAGRAM & PIPING CONNECTIONS
Hydronic Pumps
(115V) W to W
Pumps
(230V)
Out Load
Water to Water
Heat Pump
In Load
Out Load
In Load
HSS®BUFFER TANK QT®FLOW
CENTER
1 TON 2 TON 3 TON
HSS®AIR HANDLER
PIPING CONNECTIONS
(3 TON)
1" FPT OUTLET
3/4" PIPE
COIL CONDENSATE PORTS
(3 TON)
1" FPT INLET
(4 & 5 TON)
1-1/4" FPT OUTLET
3/4" PIPE
COIL CONDENSATE PORTS
(4 & 5 TON)
1-1/4" FPT INLET
4 TON & 5 TON
HSS®AIR HANDLER
PIPING CONNECTIONS
INLINE CHECK VALVE
(INCLUDED WITH MANIFOLD PURCHASE)
12
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com

13
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com
1 TON & 2 TON HSS® AIR HANDLER WIRING SCHEMATIC
1. ALL FIELD WIRING MUST BE PER THE FOLLOWING:
·NATIONAL ELECTRICAL CODE (NEC) AND / OR
·CANADIAN ELECTRICAL CODE (CEC) AND / OR
·STATE, COUNTY, LOCAL, REGIONAL OR CITY CODES.
2. IF ANY OF THE ORIGINAL WIRING MUST BE REPLACED;
REPLACE THE WIRE WITH WIRE THAT HAS THE SAME
TEMPERATURE RATING OF 221~F (105~C).
3. ONLY USE COPPER CONDUCTORS FOR FIELD WIRING.
4. ALL REPLACEMENT COMPONENTS MUST BE PROPERLY
GROUNDED.
5. PROVIDE CIRCUIT BREAKER SIZED TO PROTECT THE
WIRING FROM THE MAIN ELECTRICAL SERVICE ENTRANCE
TO THE CIRCUIT BREAKERS IN THE UNIT CONTROL BOX.
6. THE MOTORS ARE INTERNALLY THERMALLY PROTECTED.
7. THE COMMON WIRE FROM THE THERMOSTAT IS REQUIRED
1
2
3 4
5
6
C Y ORWG
9 10 11 12 13 14 15 16 17 18 19 20
NO C NC NO C NC NO C NC NO C NC
B&D MFG INC. PART # ZT-4X
1 2 3 4 5 6 7 8
B&D MFG INC.
PART # B2-30T
+_
FAN TIMER
IN
OUT
LINE VOLTAGE
208V/240V
SINGLE PHASE
LINE VOLTAGE
208V/240V
SINGLE PHASE
_
+
PRI: COM 208 240 24 VAC
BLK RED ORG BLU YEL
SEC:
50 VA 50/60 Hz
CLASS 2 NOT WET, CLASS 3 WET
CUS
EMERGENCY
HEAT
STRIP
(OPTIONAL)
G
RED
ORN
COM
YEL
BLK
GRN
BLK
RED
WHT
COM
GRN
RED
BLK
COM
BLK
GRN
RED
RED
YEL
COMMON IS REQUIRED
GRN
WHT
YEL
9 PIN
SMART MOTOR
208V / 230V 24V
208V/240V
24V
LINE TYPE DESCRIPTION VOLTAGE
CONTINUOUS 24V
CHAIN 208 / 240
C Y O R W G
24V LOW VOLTAGE
CLASS 2
FIELD WIRING
FIELD WIRING
240V
L1
GROUND
G
G
G
G
G
G
G
BLK=BLACK
RED=RED
GRN=GREEN
WHT=WHITE
COM=BLUE
BRN=BROWN
YEL=YELLOW
ORN=ORANGE
GRY=GREY
L2
FIELD
WIRING
24V
RED
COM
WHT
COM
WHT
YEL
GRN
YEL
YEL
YEL
COM
COM
BLK
BLK
ORN
RED
GRN
GRN
COM
COM
COM
BLK
COM
YEL
ORN
RED
6
5
4
3
2
1
6
5
4
3
2
1
SINGLE PHASE
YEL
YEL
COM

14
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com
+_
_
+
HEAT TIMER 3
OUT
IN
9 10 11 12 13 14 15 16 17 18 19 20
NO C NC NO C NC NO C NC NO C NC
B&D MFG INC. PART # ZT-4X
1 2 3 4 5 6 7 8
B&D MFG INC. PART # B2-30T
B&D MFG INC. PART # B2-30T
B&D MFG INC. PART # B2-30T
+_+_
HEAT TIMER 2 FAN TIMER
ININ
OUTOUT
LINE VOLTAGE
208V/240V
SINGLE PHASE
LINE VOLTAGE
208V/240V
SINGLE PHASE
_
+
PRI: COM 208 240 24 VAC
BLK RED ORG BLU YEL
SEC:
50 VA 50/60 Hz
CLASS 2 NOT WET, CLASS 3 WET
CUS
30 60
EMERGENCY HEAT STRIP OPTIONAL
G
RED
ORN
COM
YEL
BLK
GRN RED
BLK
WHT
BRN
COM
GRN
RED
BLK
COM
BLK
GRN
RED
YEL
GRN
COM
WHT
BRN
RED
YEL
GRY
COMMON IS REQUIRED
GRN WHT
YEL
G
9 PIN
SMART MOTOR
208V / 230V 24V
208V/240V
24V
1
2
3
4
5
6
CYOR W G
C Y O R W G
6
5
4
3
2
1
6
5
4
3
2
1
24V LOW VOLTAGE
CLASS 2
FIELD WIRING
FIELD WIRING
240V
L1
GROUND
G
G G G G G G
1. ALL FIELD WIRING MUST BE PER THE FOLLOWING:
NATIONAL ELECTRICAL CODE (NEC) AND / OR CANADIAN ELECTRICAL CODE (CEC) AND / OR STATE, COUNTY, LOCAL, REGIONAL OR CITY CODES. 2. IF ANY OF THE ORIGINAL WIRING MUST BE REPLACED;
REPLACE THE WIRE WITH WIRE THAT HAS THE SAME TEMPERATURE RATING OF 221 F (105C).
3. ONLY USE COPPER CONDUCTORS FOR FIELD WIRING.
4. ALL REPLACEMENT COMPONENTS MUST BE PROPERLY GROUNDED.
5. PROVIDE CIRCUIT BREAKER SIZED TO PROTECT THE
WIRING FROM THE MAIN ELECTRICAL SERVICE ENTRANCE TO THE CIRCUIT BREAKERS IN THE UNIT CONTROL BOX.
6. THE MOTORS ARE INTERNALLY THERMALLY PROTECTED.
7. THE COMMON WIRE FROM THE THERMOSTAT IS REQUIRED
NOTES
WIRING COLOR CODE KEY
BLK=BLACK
RED=RED
GRN=GREEN
WHT=WHITE
COM=BLUE
BRN=BROWN
YEL=YELLOW
ORN=ORANGE
LINE TYPE DESCRIPTION VOLTAGE
CONTINUOUS 24V
CHAIN 208 / 240
GRY=GREY
L2
FIELD
WIRING
24V
GRY
GRN
YEL
WHT
COM
COM
WHT
ORN
RED RED
COM
WHT
COM
WHT
COM
WHT
YEL
GRN
YEL
RED
ORN
COM
YEL
BLK
YEL
YEL
COM
COM
BLK
BLK
ORN
RED
GRN
GRN
COM
COM
YEL
YEL
COM COM
SINGLE PHASE
3 TON, 4 TON & 5 TON HSS® AIR HANDLER WIRING SCHEMATIC

15
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com
1 TON 2 TON SPEED TERMINAL LUG ASSIGNMENT
1 Ton
Unit
Torque
(oz / ft)
Speed
(RPM)
Air Flow
(CFM)
Rated /
Max ESP
Lug 2 5850 270 .15 / .5
Lug 3 7980 330 .3 / .5
Lug 4 91020 390 .3 / .5
Lug 5 11 1080 440 .3 / .5
2 Ton
Unit
Torque
(oz / ft)
Speed
(RPM)
Air Flow
(CFM)
Rated /
Max ESP
Lug 2 11.6 975 600 .3 / .5
Lug 3 13 1015 700 .3 / .5
Lug 4 15 1060 800 .3 / .5
Lug 5 19 1120 950 .3 / .5
MOTOR TAPS / CONTROL TERMINAL LUG
POSITION ONLY THE ORANGE (ORN) WIRE FOR DESIRED PRE-PROGRAMMED AIR FLOW
ORN RED
1 2 3 4 5 6 7 8
B&D MFG INC. PART # B2-30T
+_
FAN TIMER
IN
OUT
_
+
PRI: COM 208 240 24 VAC
BLK RED ORG BLU YEL
SEC:
50 VA 50/60 Hz
CLASS 2 NOT WET, CLASS 3 WET
CUS
208V/240V
24V
1
2
3
4
5
6
CYOR W G
C Y O R W G
24V LOW VOLTAGE
CLASS 2
FIELD WIRING
FIELD WIRING
240V
L1
GROUND
G
G G G G G G
L2
BLK
COM
YEL
ORN
RED
6
5
4
3
2
1
6
5
4
3
2
1
9 10 11 12 13 14 15 16 17 18 19 20
NO C NC NO C NC NO C NC NO C NC
B&D MFG INC. PART # ZT-4X

16
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com
3 TON, 4 TON & 5 TON SPEED TERMINAL LUG ASSIGNMENT
3 Ton
Unit
Torque
(oz / ft)
Speed
(RPM)
Air Flow
(CFM)
Rated /
Max ESP
Lug 2 23 970 1000 .3 / .5
Lug 3 24.2 980 1100 .3 / .5
Lug 4 26.5 1005 1200 .3 / .5
Lug 5 28.5 1023 1350 .3 / .5
4 Ton
Unit
Torque
(oz / ft)
Speed
(RPM)
Air Flow
(CFM)
Rated /
Max ESP
Lug 2 24 939 1400 .3 / .5
Lug 3 28.9 1023 1500 .3 / .5
Lug 4 31.3 1083 1600 .3 / .5
Lug 5 37.3 1104 1750 .3 / .5
5 Ton
Unit
Torque
(oz / ft)
Speed
(RPM)
Air Flow
(CFM)
Rated /
Max ESP
Lug 2 43 860 1800 .3 / .5
Lug 3 47 872 1900 .3 / .5
Lug 4 50 890 2000 .3 / .5
Lug 5 57.5 925 2150 .3 / .5
+_
_
+
_
+
PRI: COM 208 240 24 VAC
BLK RED ORG BLU YEL
SEC:
50 VA 50/60 Hz
CLASS 2 NOT WET, CLASS 3 WET
CUS
HEAT TIMER 3
RED
ORN
COM
YEL
BLK
ORN
RED
208V/240V
24V
OUT
IN
9 10 11 12 13 14 15 16 17 18 19 20
NO C NC NO C NC NO C NC NO C NC
B&D MFG INC. PART # ZT-4X
1 2 3 4 5 6 7 8
B&D MFG INC. PART # B2-30T
B&D MFG INC. PART # B2-30T
B&D MFG INC. PART # B2-30T
+_+_
1
2
3 4
5
6
CYORWG
C Y O R W G
6
5
4
3
2
1
6
5
4
3
2
1
24V LOW VOLTAGE
CLASS 2
FIELD WIRING
FIELD WIRING
240V
L1
GROUND
G
G G G G G G
HEAT TIMER 2 FAN TIMER
ININ
OUTOUT
L2
RED
MOTOR TAPS / CONTROL TERMINAL LUG
POSITION ONLY THE ORANGE (ORN) WIRE FOR DESIRED PRE-PROGRAMMED AIR FLOW

17
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com
ADDITIONAL 24V SOURCE FOR HSS® AIR HANDLER (1 & 2 TON UNITS)
9 10 11 12 13 14 15 16 17 18 19 20
NO C NC NO C NC NO C NC NO C NC
B&D MFG INC. PART # ZT-4X
1 2 3 4 5 6 7 8
B&D MFG INC.
PART # B2-30T
+_
FAN TIMER
IN
OUT
LINE VOLTAGE
208V/240V
SINGLE PHASE
_
+
GRN
RED
BLK
RED
YEL
COMMON IS REQUIRED
GRN
WHT
YEL
208V/240V
24V
1
2
3
4
5
6
C Y OR W G
C Y O R W G
24V LOW VOLTAGE
CLASS 2
FIELD WIRING
FIELD WIRING
240V
L1
GROUND
G
G
G
G
G
G
G
L2
FIELD
WIRING
24V
RED
COM
WHT
COM
WHT
YEL
GRN
YEL
YEL
YEL
COM
COM
BLK
BLK
ORN
RED
GRN
GRN
COM
COM
COM
BLK
COM
YEL
ORN
RED
6
5
4
3
2
1
6
5
4
3
2
1
YEL
YEL
COM
PRI:
COM 208 240 24 VAC
BLK RED ORG BLU YEL
SEC:
50 VA 50/60 Hz
CLASS 2 NOT WET, CLASS 3 WET
_
+
PRI: COM 208 240 24 VAC
BLK RED ORG BLU YEL
SEC:
50 VA 50/60 Hz
CLASS 2 NOT WET, CLASS 3 WET
CUS
YEL
208V/240V
24V
COM COM
WIRE FOR EXTRA
24V
POWER SOURCE
WIRE FOR EXTRA
24V
POWER SOURCE
NOTE
IT IS RECOMMENDED TO ADD AN INLINE FUSE IF WIRING INTO THE 24V ADDITIONAL POWER SOURCE.
(THIS IS TO KEEP FROM DAMAGING THE TRANSFORMER)
ZOOMED IN VIEW OF ADDITIONAL 24V POWER OPTION ON HSS® AIR HANDLER

18
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com
ADDITIONAL 24V SOURCE FOR HSS® AIR HANDLER (3,4 & 5 TON UNITS)
+_
_
+
HEAT TIMER 3
OUT
IN
9 10 11 12 13 14 15 16 17 18 19 20
NO C NC NO C NC NO C NC NO C NC
B&D MFG INC. PART # ZT-4X
1 2 3 4 5 6 7 8
B&D MFG INC.
PART # B2-30T
B&D MFG INC.
PART # B2-30T
B&D MFG INC.
PART # B2-30T
+_+_
HEAT TIMER 2 FAN TIMER
ININ
OUTOUT
LINE VOLTAGE
208V/240V
SINGLE PHASE
_
+
PRI: COM 208 240 24 VAC
BLK RED ORG BLU YEL
SEC:
50 VA 50/60 Hz
CLASS 2 NOT WET, CLASS 3 WET
CUS
GRN
RED
BLK
YEL
GRN
COM
WHT
BRN
RED
YEL
208V/240V
24V
1
2
3
4
5
6
CY O R W G
C Y O R W G
6
5
4
3
2
1
6
5
4
3
2
1
24V LOW VOLTAGE
CLASS 2
FIELD WIRING
FIELD WIRING
240V
L1
GROUND
G
G
G
G
G
G
G
L2
GRY
GRN
YEL
WHT
COM
COM
WHT
ORN
RED RED
COM
WHT
COM
WHT
COM
WHT
YEL
GRN
YEL
RED
ORN
COM
YEL
BLK
YEL
YEL
COM
COM
BLK
BLK
ORN
RED
GRN
GRN
COM
COM
YEL
YEL
COM COM
COMMON IS REQUIRED
GRN
WHT
YEL
FIELD
WIRING
24V
_
+
PRI: COM 208 240 24 VAC
BLK RED ORG BLU YEL
SEC:
50 VA 50/60 Hz
CLASS 2 NOT WET, CLASS 3 WET
CUS
YEL
208V/240V
24V
COM COM
WIRE FOR EXTRA
24V
POWER SOURCE
ZOOMED IN VIEW OF ADDITIONAL 24V POWER OPTION ON HSS® AIR HANDLER
WIRE FOR EXTRA
24V
POWER SOURCE
1. IT IS RECOMMENDED TO ADD AN INLINE FUSE IF WIRING INTO
THE 24V ADDITIONAL POWER SOURCE.
(THIS IS TO KEEP FROM DAMAGING THE TRANSFORMER)
2. ALL FIELD WIRING MUST BE PER THE FOLLOWING:
NATIONAL ELECTRICAL CODE (NEC) AND / OR
CANADIAN ELECTRICAL CODE (CEC) AND / OR
STATE, COUNTY, LOCAL, REGIONAL OR CITY CODES.
3. IF ANY OF THE ORIGINAL WIRING MUST BE REPLACED;
REPLACE THE WIRE WITH WIRE THAT HAS THE SAME
TEMPERATURE RATING OF 221 F (105C).
4. ONLY USE COPPER CONDUCTORS FOR FIELD WIRING.
5. ALL REPLACEMENT COMPONENTS MUST BE PROPERLY GROUNDED.
6. PROVIDE CIRCUIT BREAKER SIZED TO PROTECT THE
WIRING FROM THE MAIN ELECTRICAL SERVICE ENTRANCE
TO THE CIRCUIT BREAKERS IN THE UNIT CONTROL BOX.
7. THE MOTORS ARE INTERNALLY THERMALLY PROTECTED.
8. THE COMMON WIRE FROM THE THERMOSTAT IS REQUIRED
NOTES
+_
_
+
HEAT TIMER 3
OUT
IN
9 10 11 12 13 14 15 16 17 18 19 20
NO C NC NO C NC NO C NC NO C NC
B&D MFG INC. PART # ZT-4X
1 2 3 4 5 6 7 8
B&D MFG INC.
PART # B2-30T
B&D MFG INC.
PART # B2-30T
B&D MFG INC.
PART # B2-30T
+_+_
HEAT TIMER 2 FAN TIMER
ININ
OUTOUT
LINE VOLTAGE
208V/240V
SINGLE PHASE
_
+
PRI: COM 208 240 24 VAC
BLK RED ORG BLU YEL
SEC:
50 VA 50/60 Hz
CLASS 2 NOT WET, CLASS 3 WET
CUS
GRN
RED
BLK
YEL
GRN
COM
WHT
BRN
RED
YEL
208V/240V
24V
1
2
3
4
5
6
CY O R W G
C Y O R W G
6
5
4
3
2
1
6
5
4
3
2
1
24V LOW VOLTAGE
CLASS 2
FIELD WIRING
FIELD WIRING
240V
L1
GROUND
G
G
G
G
G
G
G
L2
GRY
GRN
YEL
WHT
COM
COM
WHT
ORN
RED RED
COM
WHT
COM
WHT
COM
WHT
YEL
GRN
YEL
RED
ORN
COM
YEL
BLK
YEL
YEL
COM
COM
BLK
BLK
ORN
RED
GRN
GRN
COM
COM
YEL
YEL
COM COM
COMMON IS REQUIRED
GRN
WHT
YEL
FIELD
WIRING
24V
_
+
PRI: COM 208 240 24 VAC
BLK RED ORG BLU YEL
SEC:
50 VA 50/60 Hz
CLASS 2 NOT WET, CLASS 3 WET
CUS
YEL
208V/240V
24V
COM COM
WIRE FOR EXTRA
24V
POWER SOURCE
WIRE FOR EXTRA
24V
POWER SOURCE
ZOOMED IN VIEW OF ADDITIONAL 24V POWER OPTION ON HSS® AIR HANDLER
NOTE
IT IS RECOMMENDED TO ADD AN INLINE FUSE IF WIRING INTO THE 24V ADDITIONAL POWER SOURCE.
(THIS IS TO KEEP FROM DAMAGING THE TRANSFORMER)

19
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com
_
+
PRI: COM 208 240 24 VAC
BLK RED ORG BLU YEL
SEC:
50 VA 50/60 Hz
CLASS 2 NOT WET, CLASS 3 WET
CUS
208V/240V
24V
FIELD WIRING
240V
L1
GROUND
G
G
G
G
G
G
G
L2
R3
D6 D4 D5
LED2
RLY3
C2
D2 D3 D1
C1 R2
FU2
PUMP
J3
L 2 N
FU1
J2
FUSE PUMP 1 FUSE PUMP 2
O CYR
THERMOSTAT
OR
J13
T2
J12
T1
H/CH/CH/C
HOHO
H/CH/CH/C
HOHO
O RW G
9 10 11 12 13 14 15 16 17 18 19 20
NO C NC NO C NC NO C NC NO C NC
B&D MFG INC. PART # ZT-4X
1 2 3 4 5 6 7 8
_
+
PRI: COM 208 240 24 VAC
BLK RED ORG BLU YEL
SEC:
50 VA 50/60 Hz
CLASS 2 NOT WET, CLASS 3 WET
CUS
COMMON IS REQUIRED
GRN
WHT
YEL
208V/240V
24V
1
2
3
4
5
6
6
5
4
3
2
1
6
5
4
3
2
1
24V LOW VOLTAGE
CLASS 2
FIELD WIRING
FIELD WIRING
240V
L1
GROUND
G
G
G
G
G
G
G
L2
TRANS
C
R3
RLY1
15-A
MAIN
MAIN FUSE
WHT
LINE LINE
FUSED
110V
BLK
J1
COMCOM
D6 D4 D5
LED2
RLY3
C2
D2 D3 D1
C1
LED1
R1
RLY2
R2
FU2
PUMP
J3
L 2 N
FU1
PUMP
J2
L 1 N
FUSE PUMP 1 FUSE PUMP 2
O C RH
J11
J10
R
24V
EXPAND
O CYR
THERMOSTAT
OR Y C
J13
T2
J12
T1
H/CH/CH/C
HOHO
H/CH/CH/C
HOHO
HSS®BUFFER TANK B3-6CR BOARD
C Y O R W G
HSS®AIR HANDLER ELECTRICAL PANEL
CYOR W G
C Y O R W G
+_
_
+
HEAT TIMER 3
OUT
IN
9 10 11 12 13 14 15 16 17 18 19 20
NO C NC NO C NC NO C NC NO C NC
B&D MFG INC. PART # ZT-4X
1 2 3 4 5 6 7 8
B&D MFG INC.
PART # B2-30T
B&D MFG INC.
PART # B2-30T
B&D MFG INC.
PART # B2-30T
+_+_
HEAT TIMER 2 FAN TIMER
ININ
OUTOUT
HSS® AIR HANDLER TO HSS® BUFFER TANK WIRING
NOTE:
 The HSS® Air Handler has a built in isolation Relay therefore we do not use “R” as our 24v power.
 We use the “C” Common to power the Air Handler.
 The “O” Wire is Not Required to be Hooked Up to our HSS® Air Handler, as the Thermostat will Determine the Call for Cooling.
 The “R” Wire is Not Required to be Hooked Up to our HSS® Air Handler, as the Thermostat will Determine the Call for Heating.
THE 4 WIRES LISTED BELOW ARE
TO BE CONNECTED TO THE HSS® AIR HANDLER
ELECTRICAL PANEL TO WORK PROPERLY WITH
THE HSS® BUFFER TANK EQUIPMENT
C - Common Required
Y - Compressor
W - Emergency Backup Heat (If Selected)
G - Fan Blower
The HSS® Buffer Tank B3-6CR Board
Provides 24V Power
to Your Thermostat on “C” Terminal

20
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com
HSS® AIR HANDLER WIRING TO OTHER WATER/WATER EQUIPMENT
Air to Water Heat Pump
Chiller Equipment
Boiler Equipment
Heat Plate Exchanger
Equipment
Tankless Water Heater
Equipment
High-Efficiency
Hot Water Tanks
OTHER HYDRONIC EQUIPMENT OPTIONS
THE 4 WIRES LISTED BELOW ARE
TO BE CONNECTED TO THE HSS® AIR HANDLER
ELECTRICAL PANEL TO WORK PROPERLY WITH
YOUR EQUIPMENT APPLICATION.
C - Common Required
Y - Compressor
W - Emergency Backup Heat (If Selected)
G - Fan Blower
NOTE:
 You Must Provide the 24V Power for the Thermostat Connected to the HSS® Air Handler. If no external 24V power is available on
your Equipment Application, then please refer to the wiring diagrams on page 17-18 for a solution to power your thermostat.
 The HSS® Air Handler has a built in isolation Relay therefore we do not use “R” as our 24v power.
 We use the “C” Common to power the Air Handler.
 The “O” Wire is Not Required to be Hooked Up to our HSS® Air Handler, as the Thermostat will Determine the Call for Cooling.
 The “R” Wire is Not Required to be Hooked Up to our HSS® Air Handler, as the Thermostat will Determine the Call for Heating.
_
+
PRI: COM 208 240 24 VAC
BLK RED ORG BLU YEL
SEC:
50 VA 50/60 Hz
CLASS 2 NOT WET, CLASS 3 WET
CUS
208V/240V
24V
FIELD WIRING
240V
L1
GROUND
G
G
G
G
G
G
G
L2
R3
D6 D4 D5
LED2
RLY3
C2
D2 D3 D1
C1 R2
FU2
PUMP
J3
L 2 N
FU1
J2
FUSE PUMP 1 FUSE PUMP 2
O CYR
THERMOSTAT
OR
J13
T2
J12
T1
H/CH/CH/C
HOHO
H/CH/CH/C
HOHO
O RW G
9 10 11 12 13 14 15 16 17 18 19 20
NO C NC NO C NC NO C NC NO C NC
B&D MFG INC. PART # ZT-4X
1 2 3 4 5 6 7 8
_
+
PRI: COM 208 240 24 VAC
BLK RED ORG BLU YEL
SEC:
50 VA 50/60 Hz
CLASS 2 NOT WET, CLASS 3 WET
CUS
COMMON IS REQUIRED
GRN
WHT
YEL
208V/240V
24V
1
2
3
4
5
6
6
5
4
3
2
1
6
5
4
3
2
1
24V LOW VOLTAGE
CLASS 2
FIELD WIRING
FIELD WIRING
240V
L1
GROUND
G
G
G
G
G
G
G
L2
TRANS
C
R3
RLY1
15-A
MAIN
MAIN FUSE
WHT
LINE LINE
FUSED
110V
BLK
J1
COMCOM
D6 D4 D5
LED2
RLY3
C2
D2 D3 D1
C1
LED1
R1
RLY2
R2
FU2
PUMP
J3
L 2 N
FU1
PUMP
J2
L 1 N
FUSE PUMP 1 FUSE PUMP 2
O C RH
J11
J10
R
24V
EXPAND
O CYR
THERMOSTAT
OR Y C
J13
T2
J12
T1
H/CH/CH/C
HOHO
H/CH/CH/C
HOHO
HSS®BUFFER TANK B3-6CR BOARD
C Y O R W G
HSS®AIR HANDLER ELECTRICAL PANEL
CYOR W G
C Y O R W G
+_
_
+
HEAT TIMER 3
OUT
IN
9 10 11 12 13 14 15 16 17 18 19 20
NO C NC NO C NC NO C NC NO C NC
B&D MFG INC. PART # ZT-4X
1 2 3 4 5 6 7 8
B&D MFG INC.
PART # B2-30T
B&D MFG INC.
PART # B2-30T
B&D MFG INC.
PART # B2-30T
+_+_
HEAT TIMER 2 FAN TIMER
ININ
OUTOUT
24V is Needed to Power Your Thermostat,
See Below in Notes For More Information If 24V is Not Available