Operation, Tp970c and d – Honeywell TP9600 User Manual

Page 8

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TP970 AND TP9600 SERIES PNEUMATIC THERMOSTATS

75-7134—1

Table 6. TP9600 Thermostat Specifications.

Model No.

Description

Setpoint Slot

Includes Stat.

Single Temperature, Two-Pipe:

TP9600A 1007

DA, Open Windows

Open

TP970A 2004

TP9600B 1006

RA, Open Windows

Open

TP970B 2002

TP9603A 1001

DA, Close Windows

Closed

TP970A 2004

TP9603B 1000

RA, Close Windows

Closed

TP970B 2002

Day/Night, Two-Pipe:

TP9610A 1006

DA, Open Windows

Open

TP971A 2003

TP9610B 1005

RA, Open Windows

Open

TP971B 2001

TP9613A 1000

DA, Close Windows

Closed

TP971A 2003

TP9613B 1009

RA, Close Windows

Closed

TP971B 2001

Heating/Cooling, Two-Pipe:

TP9620A 1005

DA, Open Windows

Open

TP972A 2002

TP9623B 1009

RA, Close Windows

Closed

TP972B 2002

Single Temperature, One or Two-Pipe:

TP9630A 1004

DA, Open Windows

Open

TP973A 2076

TP9630B 1003

RA, Open Windows

Open

TP973B 2066

TP9633A 1008

DA, Close Windows

Closed

TP973A 2076

TP9633B 1007

RA, Close Windows

Closed

TP973B 2066

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).

SUPPLY

TP970A,B OR
TP9600A,B

N.O.

M B

M

C3535-1

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.

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
14
13
12
11
10

9
8
7
6
5
4
3
2
1

(100)

(90)

(80)

(70)

(60)

(50)

(40)

(30)

(20)

(10)

0

15

12.5

10

7.5

5

2.5

15

12.5

10

7.5

5

2.5

SETPOINT

SETPOINT

(8) (7) (6) (5) (4) (3) (2) (1)

(8)

(7)

(6)

(5)

(4)

(3)

(2)

(1)

BRANCHLINE PRESSURE—PSI (kPa)

DEVIATION IN SPACE TEMPERATURE—DEGREES F (C)

BELOW SETPOINT

ABOVE SETPOINT

C3536

TP970C MINIMUM
THROTTLING RANGE =
5F (2.8C)

TP970C MAXIMUM
THROTTLING RANGE =
20F (11.1C)

Fig. 2. TP970C Space Temperature vs. Branchline

Pressure.

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