Product Overview

2
TP971A-E PNEUMATIC THERMOSTATS
77-9824
Honeywell Europe S.A.
3 Avenue du Bourget
B-1140 Brussels Belgium
Honeywell Asia Pacific Inc.
30th Floor, Office Tower
Convention Plaza
1 Harbour Road
Wanchai
Hong Kong
Home and Building Control
Honeywell Limited-Honeywell Limitée
740 Ellesmere Road
Scarborough Ontario
Honeywell Latin American Division
Miami Lakes Headquarters
14505 Commerce Way Suite 500
Miami Lakes FL 33016
Helping You Control Your World
77-9824 Rev. 6-94
Printed in U.S.A. on Recycled Paper
Home and Building Control
Honeywell Inc.
Honeywell Plaza
P.O. Box 524
Minneapolis MN 55408-0524
DESCRIPTION
TP971A, B, D, and E are two-pipe
proportional pneumatic thermostats
used to control actuators on HVAC
control systems. TP971C is a three-
pipe thermostat used for unit ventilator
applications.
SPECIFICATIONS
Models:
Air Consumption:
0.011 scfm (5.2 ml/s)
Filter:
Replaceable cartridge type
Maximum Safe Temperature:
150F (66C)
Adjustment:
DAY setting: External knob with
internal, adjustable, locking stops
for minimum and maximum
settings
NIGHT setting: Independent,
unexposed setpoint knob (access
requires cover removal)
Thermometer:
Spiral bimetal, 60 to 90F or 15 to
30C
Reset:
Manual DAY/AUTO lever exposed
through cover
Mounting:
Horizontal or vertical wall mounted
with plug-in backplate
Dimensions:
3-1/8 x 1-7/8 x 1-1/2 in. deep (80 x
40 x 50 mm deep)
Cover and Accessories:
Order separately (see 77-1003)
Fittings:
Order separately (see 95-5597)
Throttling Range:
Adjustable from 2 to 10F (1 to 5K)
Maximum Air Pressure:
25 psi (172 kPa)
Branch Line Indication:
Self-sealing gage tap accessible
under cover
√
Model Action
Setpoint Range
Day Night Day Night
Changeover Pressure
in psi (kPa)
TP971A Direct 60 to 90F
or
15 to 30C
50 to 75F
or
12 to 24C
13 (90)
or
16 (110)
or
20 (138)
18 (124)
or
21 (145)
or
25 (172)
TP971B Reverse 60 to 90F 50 to 75F 13 (90)
or
16 (110)
or
20 (138)
18 (124)
or
21 (145)
or
25 (172)
TP971C Direct 60 to 90F
or
15 to 30C
50 to 75F
or
12 to 24C
or
75 to 100F
13 (90)
or
16 (110)
or
20 (138)
18 (124)
or
21 (145)
or
25 (172)
TP971D Direct 60 to 90F 75 to 100F 13 (90)
18 (124)
TP971E Reverse 60 to 90F 75 to 100F 13 (90)
18 (124)