Operation - Honeywell B Service Data

TP970 AND TP9600 SERIES PNEUMATIC THERMOSTATS
Model No.
Single Temperature, Two-Pipe:
TP9600A 1007
TP9600B 1006
TP9603A 1001
TP9603B 1000
Day/Night, Two-Pipe:
TP9610A 1006
TP9610B 1005
TP9613A 1000
TP9613B 1009
Heating/Cooling, Two-Pipe:
TP9620A 1005
TP9623B 1009
Single Temperature, One or Two-Pipe:
TP9630A 1004
TP9630B 1003
TP9633A 1008
TP9633B 1007

OPERATION

TP970A,B and TP9600A,B
When using a TP970A or TP9600A (Fig. 1) in heating
applications with a normally open valve, a fall in temperature
lowers Branchline Pressure (BLP) to the valve. THis lower
BLP provides proportional valve action matching the existing
load requirements. When a TP970B or TP9600B is used in a
cooling application, a rise in temperature causes the TP970B
or TP9600B to lower BLP. The energy conservation models
limit control temperature to a maximum (heating) or minimum
(cooling) of 72F (24C).
M
SUPPLY
Fig. 1. TP970A,B and TP9600A,B Typical Operation.
TP970C and D
The TP970C and D with wide throttling range (Fig. 2 and 3)
allow use of heating and cooling valve assemblies with either
selected spring ranges (Fig. 4) or ratio relays (Fig. 5) to
achieve a ZEB range.
75-7134—1
Table 6. TP9600 Thermostat Specifications.
Description
DA, Open Windows
RA, Open Windows
DA, Close Windows
RA, Close Windows
DA, Open Windows
RA, Open Windows
DA, Close Windows
RA, Close Windows
DA, Open Windows
RA, Close Windows
DA, Open Windows
RA, Open Windows
DA, Close Windows
RA, Close Windows
TP970A,B OR
TP9600A,B
M B
N.O.
C3535-1
Setpoint Slot
Open
Open
Closed
Closed
Open
Open
Closed
Closed
Open
Closed
Open
Open
Closed
Closed
Various ZEB ranges, heating control points, and cooling
control points are obtained by selecting the appropriate
thermostat setpoint, throttling range, and spring range or ratio
relays.
15
(100)
14
(90) 13
TP970C MINIMUM
12
(80)
THROTTLING RANGE =
11
(70) 5F (2.8C)
10
9
(60)
8
(50)
7
6
(40)
5
(30)
4
(20) 3
2
(10)
12.5 10 7.5
1
15
0
(8) (7) (6) (5) (4) (3) (2) (1)
BELOW SETPOINT
DEVIATION IN SPACE TEMPERATURE—DEGREES F (C)
Fig. 2. TP970C Space Temperature vs. Branchline
8
Includes Stat.
TP970A 2004
TP970B 2002
TP970A 2004
TP970B 2002
TP971A 2003
TP971B 2001
TP971A 2003
TP971B 2001
TP972A 2002
TP972B 2002
TP973A 2076
TP973B 2066
TP973A 2076
TP973B 2066
TP970C MAXIMUM
THROTTLING RANGE =
20F (11.1C)
SETPOINT
5 2.5 2.5 5 7.5 10 12.5
(1) (2) (3) (4) (5) (6)
SETPOINT
ABOVE SETPOINT
Pressure.
15
(7) (8)
C3536