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2
Note
The controls are intended to control
equipment under normal operating
conditions. Where failure or malfunctioning
of the controls could lead to an abnormal
operating condition that could cause
personal injury or damage to the
equipment or other property, other
devices (limit or safety controls) or
systems (alarm or supervisory systems)
intended to warn of or protect against
failure or malfunctioning of the controls
must be incorporated into and maintained
as part of the control system.
Type number matrix
P735AAA Automatic reset
P735BCA Open low - manual reset
P735BEA Open high - manual reset
P735AAW HP or LP Limit (Auto reset)
HP conforming PED 97/23CE
P735BEB HP Limit (Man. Reset)
Conforming PED 97/23CE
P735BES HP Safety Limit (Man. Reset)
Conforming PED 97/23 CE
P735BCB LP Limit (Man. Reset)
Including lock plate assy.
Mounting
Mounting can easily be done with mounting
bracket 271-51L (order separately) or directly
on a surface. Mounting holes M4 are provided.
Adjustment
Adjustment of range and differential can be done
by turning the hexagonal range screw and
differential screw. Manual reset models have a
range screw only. The adjustment screw can
also be locked by a lock plate accessory
(KIT023N600). On all models the scale indicates
the high switch point (Except type
P735BCA,P735BCB, here the scale indicates
the low (cut-out) switch point). The low switch
point can be derived by deducting the differential
value from the high switch point.
Catalogue Section 6
Contact functions
(see also "Type Number Selection" table)
A
Line ~
max. 20 A
A - C open on pressure decrease
Fig. 1
A
Line ~
max. 20 A
A - B open on pressure increase
Fig. 2
A
Line ~
max. 20 A
A - C open on pressure increase
Fig. 3
Optional construction note
If your requirements are not in the type number
selection table, then please contact your
Johnson Controls representative.
Repair and replacement
Repair is not possible. In case of an improperly
functioning control, please check with your
nearest supplier. When contacting the supplier
for a replacement you should state the
type/model number of the control. This number
can be found on the data plate.
P735
Issue 13/05/2003
C
M
B
C
B
M
B
C
M
© 2003 Johnson Controls Inc
Order No. PD-P735-E
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