Johnson Controls P48 Serie Manual De Instrucciones

PSC9626
Pressure Controls for Steam, Air or (hot) Water
Introduction
The series P48 pressure controls are designed
as operating or high/low cut-out control on
steam, air or (hot) water applications. Also for
non-combustible gases which are not harmful to
the materials in contact with these mediums.
On steam applications a steam trap is
recommended (see Accessories).
Some models have been tested and approved
according to PED97/23EC Cat IV (see type
number selection table)
Description
The P48 series have been developed for special
applications where pressure must be controlled.
All models have an adjustable differential
depending on the range (see type number
selection table).The P48AAA-9110 and
P48AAA-9120 has the power element outside
the case.
All the models have phosphor bronze bellows
and brass pressure connections except the
P48AAA-9150. This model has a stainless steel
bellows and pressure connection and is provided
with a brass adapter
1
male.
Generous wiring space provided
Splash-proof enclosure (IP54)
SPDT contacts are provided as
standard on single pressure
control
Trip-free manual reset
© 2003 Johnson Controls Inc.
Code No. PD-P48-E
Series P48
/ "-18 NPT female to R3/8
4
Feature and Benefits
European Refrigeration Controls Catalogue
P48 Pressure Control for Steam, Air or (hot)
Easy wiring and maintenance
Can be used for indoor/outdoor applications
Can be wired for alarm functions
Override is not possible in the control
function.
Catalog Section 6
Product Bulletin P48
Issue 03/06/2003
Water
Catalogue Section 6