
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 - 7 - 21
3100
3 - 13 - 18
D31RW
Page 1 of 2.
Dimensions are in inches (mm).
SINGLE DUCT TERMINAL UNIT WITH
HOT WATER REHEAT •
PRESSURE INDEPENDENT
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.
Options and Accessories:
* Maximum airflow limit is based upon 1.5" w.g. (373 Pa) max. differential pressure signal from Diamond Flow Sensor.
Unit
Size
Airflow Range*
cfm (l/s)
W
H
Inlet Size D
Coil Connections
1 Row
2 Row
3 Row
4 Row
4
0 – 225 (0 – 106)
12 (305)
8 (203)
3 7/8 (98) Round
1/2 (13)
7/8 (22)
7/8 (22)
7/8 (22)
5
0 – 400 (0 – 189)
12 (305)
8 (203)
4 7/8 (124) Round
1/2 (13)
7/8 (22)
7/8 (22)
7/8 (22)
6
0 – 550 (0 – 260)
12 (305)
8 (203)
5 7/8 (149) Round
1/2 (13)
7/8 (22)
7/8 (22)
7/8 (22)
7
0 – 800 (0 – 378)
12 (305)
10 (254)
6 7/8 (175) Round
1/2 (13)
7/8 (22)
7/8 (22)
7/8 (22)
8
0 – 1100 (0 – 519)
12 (305)
10 (254)
7 7/8 (200) Round
1/2 (13)
7/8 (22)
7/8 (22)
7/8 (22)
9
0 – 1400 (0 – 661)
14 (356)
12 1/2 (318)
8 7/8 (225) Round
1/2 (13)
7/8 (22)
7/8 (22)
7/8 (22)
10
0 – 1840 (0 – 868)
14 (356)
12 1/2 (318)
9 7/8 (251) Round
1/2 (13)
7/8 (22)
7/8 (22)
7/8 (22)
12
0 – 2500 (0 – 1180)
16 (406)
15 (381)
11 7/8 (302) Round
7/8 (22)
7/8 (22)
7/8 (22)
7/8 (22)
14
0 – 3370 (0 – 1590)
20 (508)
17 1/2 (508)
13 7/8 (352) Round
7/8 (22)
7/8 (22)
7/8 (22)
7/8 (22)
16
0 – 4525 (0 – 2135)
24 (610)
18 (457)
15 7/8 (403) Round
7/8 (22)
7/8 (22)
7/8 (22)
7/8 (22)
24 x 16
0 – 8330 (0 – 3931)
38 (965)
18 (457)
23 7/8 x 15 7/8 (606 x 403) Rect. 7/8 (22)
7/8 (22) 1 3/8 (35) 1 3/8 (35)
W
6"
(152)
1/2"
(13)
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
OR RECTANGULAR
MULTI-POINT
FLOW SENSOR
H
DIMENSION "L"
1 or 2 row coils L = 5" (127)
3 or 4 row coils L = 7 1/2" (191)
Listed
q
Steri-liner.
q
Fiber-free liner.
q
Solid metal liner.
q
1" (25) liner.
q
Bottom access door.
q
24 VAC Control transformer.
q
Toggle disconnect switch.
q
Hanger brackets.
q
Controls enclosure for field mounted controls.
q
Dust tight enclosure seal.
q
20 ga. (1.00) construction
Seismic Certification:
q
SSI (Standard)
q
OSHPD
q
Special Features: ___________________ .