Penn A19ANF Installation Instructions

Application
The A19ANC, A19ANF and
A19APC thermostats are
designed for a variety of
applications where rainproof
enclosures are necessary or
desirable.
IMPORTANT: The A19 Series
thermostats are intended to
control equipment under
normal operating conditions.
Where failure or malfunction
of an A19 thermostat 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) intended to
warn of or protect against
failure or malfunction of the
A19 thermostat must be
incorporated into and
maintained as part of the
control system.

Specifications

A19ANC
Type Number
A19ANF
A19APC
Range, Maximum
Temperature and
Differential*
Capillary
Enclosure
Finish
Material
Switch
Conduit Opening
Wiring Connections
Mounting
Shipping Weight
*Differential is based on direct bulb immersion in liquid at 1F (0.6C) per minute rate of change.
© 2018 Johnson Controls
Part No. 3530, Rev. K
A19ANC, A19ANF, A19APC
NEMA Type 3R Thermostats
Features


Rainproof gasketed
enclosure is U.L. Listed for
outdoor use.


Liquid-filled element is
unaffected by barometric
pressure and cross-ambient
temperatures.


Dependable field proven,
snap-acting switch is rated
for inductive or resistance
loads (See Electrical Ratings
table).


Wide choice of range
options.


Simple strain-free mounting
on three rubber cushioned
mounting feet.


High temperature dial stop.


Copper bulb well available.

General Description

The thermostats have an
enclosed SPDT switch. The red
terminal is common.
SPDT Switch Action, Standard Differential (Fixed)
SPDT Switch Action, Close Differential (Fixed)
SPDT Switch Action, Standard Differential (Adjustable)
See Selection Chart
.062" (1.6 mm) O.D. Standard Length is 10' (3 m)
Rainproof with Gasketed Cover (NEMA 3R)
U.L. Listed Outdoor Gray Enamel
.062" (1.6 mm) Cold Drawn Steel
Snap-Acting Contacts in Dust Protected Enclosure
Welded ¾" Female Connector
Screw Type Terminals
Three Rubber Cushioned Mounting Feet
2.3 Lb (1.0 kg)
Installation Instructions A19ANC/ANF/APC
Issue Date 0918
Fig. 1 -- Interior of an A19ANC
thermostat.
Yellow
Red to Yellow
Closes on
h
Tem perature
Increase
Blue
Red to B lue
O pens on
Tem perature
Red
Increase
(Comm on)
Fig. 2 – Designations and
Switch Action
The red to blue terminals open
on a temperature increase (See
Fig. 2).
Simultaneously, the circuit
between red and yellow closes.
The thermostats have an
adjustable high temperature
stop. A special wrench
(Part 836-61) required to adjust
the keyed stop is provided with
each thermostat.
The A19ANC and A19ANF
thermostats have a fixed
differential.
The A19APC thermostat has a
lever for adjustment of the
differential between minimum
and maximum values (See
Product Selection Chart).
1