Qw General Information Qw Model Nomenclature - Bard QW2S3DA Installation Instructions Manual

QW SERIES GEOTHERMAL R-410A STAGED CAPACITY GENERAL INFORMATION
QW 3
MODEL NUMBER |
Q-TEC™ Model
CAPACITY |
2 – 2 Ton
3 – 3 Ton
STEP CAPACITY |
4 – 4 Ton
5 – 5 Ton
REVISION |
DEHUMIDIFICATION
VENTILATION OPTIONS |
B - Blank-off Plate
V - Commercial Ventilator - Motorized w/Exhaust Spring Return
R - Energy Recovery Ventilator w/Independent Intake & Exhaust Control
S - Energy Recovery Ventilator w/Intelligent Frost Control Option
T - Energy Recovery Ventilator w/Occupied Space CFM Control Option
NOTES
 If "X" control option is selected, then thermostat and humidistat, if applicable, or DDC control system must be field supplied.
 CS9B-THOA and -THOCA are BACnet w/shielded twisted pair wiring.
l CS9BE-THOA and -THOCA are BACnet w/shielded twisted pair wiring and Ethernet port.
S 3 D A
VOLTS & PHASE
A – 230/208/60/1
B – 230/208/60/3
C – 460/60/3
I
0Z B
KW FILTER OPTIONS
0Z – OKW X – 2-Inch Pleated
(MERV8)
COLOR |
1 – White Paint
4 – Gray Paint
X – Beige Paint
V – Platinum w/Slate Front
(Vinyl)
CLIMATE CONTROL OPTIONS (Factory Mounted)
X – 24V Terminal Block Only
D – 8403-060 Electronic/Programmable Thermostat w/Humidity Control
H – 8403-060 Prog. Thermostat w/Humidity Control + 8403-067 CO
K – 24V Terminal Block + 8403-067 CO
1 – CompleteStat CS9B-THOA (Temp, Humidity & Occupancy)
2 – CompleteStat CS9B-THOCA (THO + CO
3 – CompleteStat CS9BE-THOA (THO w/Ethernet)
4 – CompleteStat CS9BE-THOCA (THO + CO
FACTORY-INSTALLED PUMP & PIPING OPTIONS
X – NONE: All pump and water connections field installed, requires field piping to the coaxial
water coil using double O-ring fittings, which must be ordered separately.
P – NONE: All pump and water connections field installed, requires field piping to the coaxial
water coil 1" female NPT wrought copper fittings.
3 – Single Grundfos UPS15-42F pump, isolation valves both ends, piped with copper to double
O-ring fittings back corners of unit
4 – Single Grundfos UP26-64F pump, isolation valves both ends, piped with copper to double
O-ring fittings back corners of unit
5 – Single Grundfos UPS26-99-FC pump, isolation valves both ends, piped with copper to
double O-ring fittings back corners of unit
X V X
COIL OPTIONS
C – Copper Coaxial Coil
N – Cupronickel Coaxial
Coil
NOTE: Copper coils
approved for ground
loop and closed loop
boiler/tower only

Controller Only
2
) 
2
l
w/Ethernet)
l
2
Manual 2100-738C
Page
C X
Controller
2

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