Johnson Controls A19A - Manual
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Table of Contents:
- Page 2 – Catalogue Section 1; © 2003 Johnson Controls Inc.; -2 closes on temperature increase
- Page 3 – ensor styles
- Page 4 – ype number selection table:
- Page 6 – Dimension A; Duct flange to be used with closed-tank
- Page 7 – Reset lever
- Page 8 – pecifications; According to low voltage directive and EMC directive
- Page 9 – Instruction sheet
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
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Summary
A19A Issue 03/03/2003 Catalogue Section 1 © 2003 Johnson Controls Inc. Order No. PD-A19A-E 2 N ote These controls are designed for use only as operating controls. Where an operating control failure would result in personal injury or loss of property it is the responsibility of the installer to add d...
A19AIssue 03/03/2003 © 2003 Johnson Controls Inc. Catalogue Section 1 Order No. PD - A19A-E 3 S ensor styles Fig. 4 Style 1a (drawn bulb) Fig.5 Style 1b swaged bulb, can be used with closed-tank connector FTG13A-600 ½ " x 14 NPT 33.3 60 Fig. 6 Style 4h ½" x 14 NPT 58.3 60 Fig. 7 Style 2 Fig....
A19A Issue 03/03/2003 Catalogue Section 1 © 2003 Johnson Controls Inc. Order No. PD-A19A-E 4 T ype number selection table: Range( °C) Diff.(K) Bulb style Setting (see page 2 adjustment) Cap. length Max.bulbtemp. Wholesalercode Ordernumber Type A19AAC Capillary thermostat, fixed differential -35 to +...
