Remote (Dispatch) Activation; Delay Timer - Spectrum RRSHA3 Series User Manual

RRSHA Series Hot Air Blower User Manual

1.2.4 Remote (Dispatch) Activation

Using connections on the Customer
Connection Terminal Block, an external switch
can be added to activate and de-activate the
RRSHA Hot Air Blower from a remote location,
such as a control house.
NOTE:
For information on installing a
remote switch, contact Spectrum.

1.2.5 Delay Timer

The RRSHA3 and RRSHA5 Hot Air Blower
utilizes a Delay-On timer when the optional
rod/crib circuit is included (Suffix "R"). The
Delay Timer delays the
start of the rod/crib
circuits for between
one second to several
minutes after power is
directed to the primary
circuit. This helps
reduce the startup
current draw, which is
especially useful with
lower-voltage systems
like 240V single-phase
systems. The timer is
factory set for a Delay-
On (A/Ai) with a two
second delay (2), (1s)
and can be adjusted on
site if necessary, for a
specific location.
The default delay time
can be changed. For
more information, see
3.2 Adjusting the
rod/crib circuit startup
delay timer on page 27.
Fig. 12 Delay-On Timer-
Rod/Crib Circuit
(Model Suffix "R")
The RRSHA5 Series Hot Air Blower additionally
utilizes a Delay-Off timer as a standard feature
for the blower fan. The Delay-Off Timer
maintains airflow across the heating elements
to evacuate excess residual heat from the
blower compartment and helps to increase
product lifespan. The delay is adjustable
between one second to three minutes.
The timer is factory set at 120 which
indicates 120 second (two minute) delay
before the blower fan shuts off and can be
adjusted during initial startup testing and on
site if necessary, for a specific situation.
For more information, see
3.4 Adjusting the blower fan circuit startup
delay timer on page 28
Fig. 13 Delay -Off Timer
ENM-3600-00
Blower Circuit
(Model RRSHA5 Only)
10