Johnson Controls A19A Product Bulletin

PSC9705
Thermostats for Refrigeration, Cooling, Heating, Ventilation
I
ntroduction
These thermostats are designed for
refrigeration, cooling, heating, ventilation and
air-conditioning applications. Standard models
are provided for remote sensing or room
sensing. Models with manual reset are
available for low or high limit functions.
D
escription
These thermostats are available with fixed or
adjustable differential. The various control
ranges cover a broad range of temperature
applications with a minimum number of models.
On request a built-in high or low limit stop is
possible and can be adjusted quickly and easily
in the field. All models have a universal way of
adjustment. For this purpose a knob and sealing
cap are enclosed.
All A19 style 1 wholesaler code models have a
bulb clamp plus screw also enclosed.
Liquid filled sensing element
Dust tight Penn switch
Trip free manual reset
Front adjustment
© 2003 Johnson Controls Inc.
Order No. PD-A19A-E
Series A19A/A19B/A19D
and Air-conditioning
Feature and Benefits
No cross ambient temperature problems
Contact differential over the whole range
Prevents pollution of the contacts by
electrostatic influences.
Override is not possible in the control function
Less mounting space required.
European Refrigeration Controls Catalogue
A19A capillary thermostat
A19B space thermostat
Catalog Section 1
Product Bulletin A19A
Issue 03/03/2003
Catalogue Section 1