Johnson Controls Thermostat A19A - Manual

European Refrigeration Controls Catalogue
Catalog Section 1
Product Bulletin A19A
Issue 03/03/2003
© 2003 Johnson Controls Inc. Catalogue Section 1
Order No. PD-A19A-E
PSC9705
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.
A19A capillary thermostat
A19B space thermostat
Feature and Benefits
‰ Liquid filled sensing element No cross ambient temperature problems
Contact differential over the whole range
‰ Dust tight Penn switch Prevents pollution of the contacts by
electrostatic influences.
‰ Trip free manual reset Override is not possible in the control function
‰ Front adjustment Less mounting space required.
Series A19A/A19B/A19D
Thermostats for Refrigeration, Cooling, Heating, Ventilation
and Air-conditioning