
SCHEDULE TYPE:
PROJECT:
ENGINEER:
CONTRACTOR:
Nailor Industries Inc. reserves the right to change any information concerning product or pricing without notice.
DATE
B SERIES
SUPERSEDES DRAWING NO.
5 - 10 - 21
3100
3 - 15 - 18 D31RW-OC
Page 1 of 2.
Dimensions are in inches (mm).
SINGLE DUCT TERMINAL UNIT WITH
HOT WATER REHEAT
•
PRESSURE INDEPENDENT
OVERSIZED CASING (LARGER WATER COIL)
DIGITAL OR ANALOG ELECTRONIC CONTROLS
CONSTANT OR VARIABLE VOLUME
MODELS: D31RW OR A31RW
Dimensional Data
Standard Features:
• 22 ga. (0.86) galvanized steel casing,
mechanically sealed, low leakage
construction. Leakage is less than 1% of
the terminal rated airflow at 1" w.g. (250 Pa).
• 2 x 20 ga. (0.86) round laminated
butterfly damper with a polyurethane
peripheral gasket. 90° rotation, CW to
close. Tight shut-off. Damper leakage is
less the 1% of the terminal rated airflow
at 3" w.g. (750 pa.) and less than 2% at
6" w.g. (1500 pa.)as tested in accordance
with ANSI / ASHRAE Standard 130.
• 1/2" (13) dia. plated steel drive shaft.
An indicator mark on the end of the shaft
shows damper position.
• Unit sizes 4–16 feature round inlet
collars.
• Multi-point averaging Diamond Flow
Sensor. Aluminum construction. Supplied
with balancing tees.
• Rectangular discharge with slip and
drive cleat duct connection.
• Full NEMA 1 type controls enclosure for
factory mounted controls.
•
3/4" (19), dual density insulation,
exposed edges coated to prevent air
erosion. Meets the requirements of NFPA
90A and UL 181.
• Right-hand controls location is standard
(shown) when looking in direction of
airflow. Optional left hand controls
mounting is available.
•
Model D31RW can be installed
horizontally, vertical or at any angle.
Operation is not affected by position.
Hot Water Coil Section:
• 1/2" (13) Copper tubes and aluminum
ripple fins, 10 per inch.
• 1, 2, 3 or 4 row.
•
Left or right hand connection.
Determined by looking in direction of
airflow (RH illustrated).
• 1/2" (13), 7/8" (22) or 1 3/8" (35) O.D.
male solder sweat connections.
Controls:
q
Digital (Nailor EZvav).
q
Digital (by others).
q
Analog (by Nailor).
See separate submittal.
DIMENSION "L"
1 OR 2 ROW COILS L = 5" (127)
3 OR 4 ROW COILS L = 7 1/2" (191)
W
6"
(152)
1/2"
(13)
H
H
AIRFLOW
CONTROLS ENCLOSURE
FOR FACTORY
MOUNTED CONTROLS
5 1/2"
(140)
15 1/2" (394)
OPTIONAL
ACCESS DOOR
L
W
SLIP AND DRIVE
CONNECTION
DAMPER
DRIVESHAFT
14" (356)
11"
(279)
D
INLET: ROUND
MULTI-POINT
FLOW SENSOR
*
Maximum airflow limit is based upon 1.5" w.g. (373 Pa) max. differential pressure signal from Diamond Flow Sensor.
**
Maximum airflow limit is based upon 1.0" w.g. (249 Pa) max. differential pressure signal from Diamond Flow Sensor.
Unit
Size
Inlet
Size
Airflow Range, cfm (I/s)
Digital* / Analog**
W
H
Inlet Size
(Nominal)
Coil Connections
1 Row 2 Row 3 Row
4 Row
4
0 – 225 (0 – 106)/0 – 180 (0 – 85)
3 7/8 (98) Round
1/2 (13) 7/8 (22) 7/8 (22)
7/8 (22)
8
5
0 – 400 (0 – 189)/0 – 325 (0 – 153)
12 (305)
10 (254)
4 7/8 (124) Round 1/2 (13) 7/8 (22) 7/8 (22)
7/8 (22)
6
0 – 550 (0 – 260)/0 – 450 (0 – 212)
5 7/8 (149) Round 1/2 (13) 7/8 (22) 7/8 (22)
7/8 (22)
10
7
0 – 800 (0 – 378)/0 – 650 (0 – 307)
14 (356) 12 1/2 (318)
6 7/8 (175) Round 1/2 (13) 7/8 (22) 7/8 (22)
7/8 (22)
8
0 – 1100 (0 – 519)/0 – 900 (0 – 425)
7 7/8 (200) Round 1/2 (13) 7/8 (22) 7/8 (22)
7/8 (22)
12
9
0 – 1400 (0 – 661)/0 – 1150 (0 – 543)
16 (406)
15 (381)
8 7/8 (225) Round 1/2 (13) 7/8 (22) 7/8 (22)
7/8 (22)
10
0 – 1840 (0 – 868)/0 – 1500 (0 – 708)
9 7/8 (251) Round 1/2 (13) 7/8 (22) 7/8 (22)
7/8 (22)
14
12
0 – 2500 (0 – 1180)/0 – 2050 (0 – 967)
20 (508) 17 1/2 (508) 11 7/8 (302) Round 1/2 (13) 7/8 (22) 7/8 (22)
7/8 (22)
16
14
0 – 3370 (0 – 1590)/0 – 2696 (0 – 1272)
24 (610)
18 (457)
13 7/8 (352) Round 7/8 (22) 7/8 (22) 7/8 (22)
7/8 (22)
24
16
0 – 4525 (0 – 2135)/0 – 3620 (0 – 1708)
38 (965)
18 (457)
15 7/8 (403) Round 7/8 (22) 7/8 (22) 1 3/8 (35) 1 3/8 (35)
Listed