64
13. AUXILIARY CONTROL
OUTPUT
The AVIA heater offers an integrated dry contact relay for
local and remote control of ON/OFF devices like pumps,
water features, valves and lights.
PUMPS
WATER FEATURES
LIGHTS
Figure 129. Device Relay Integration
Auxiliary output is available in terminal P9 “AUX”. Use the
supplied harness to control ON/OFF functions or power
switching.
OUTPUT
TEMP
INPUT
TEMP
AUX
POWER BLOWER
P2
P1
P9
COMMON
NORMALLY OPEN
NORMALLY CLOSED
Auxiliary Relay
AUXILIARY RELAY
Figure 130. Auxiliary Terminal
AUX terminal can be used as direct control or as pilot
relay to a higher rating relay or power contactor.
Table S
describes Auxiliary output terminals and ratings.
Terminal
Wire
AC Rating DC Rating
Common
Black
250V Max,
3A
30V Max,
3A
Normally Open Black and Red
Normally Open Black and Red
Table S. Auxiliary Terminals and Ratings
A
CAUTION
: Do not exceed Auxiliary relay rating.
Check power requirements of any electric component
connected to this device, following the applicable
installation norms and requirements.
Use the knockout holes located next to water inlet panel to
route Auxiliary harness inside the cabinet to the controller
board. See
Figure 131.
TO
EXTERNAL
DEVICE
ROUTE
HARNESS
FROM
KNOCKOUT
TO
CONTROL
BOARD
Figure 131. Route Communication Harness
It is recommended to use a liquid tight cord grip inserted in
the 0.875 inch diameter knockout hole for better sealing.
The built-in Auxiliary is a dry contact relay output that can
be used as a switch to control valves, lights and other
devices rated at 3 amps or below.
AUXILIARY RELAY
COM
NO
NC
LINE 1
LINE 2 OR
NEUTRAL
Figure 132. Auxiliary Relay
Use the Normally Closed (NC) and Normally Open (NO)
terminals to drive the 3-way valve rated to 3 amps or below.
This configurations typically uses an external 24V supply.
AUXILIARY RELAY
COM
NO
NC
24V
RETURN
Figure 133. 3-Way Valve
For pumps, blowers and other applications rated above 3
amps use an external SPDT relay.
AUXILIARY RELAY
COM
NO
NC
120V or 240 V
SPDT RELAY
LINE 1
LINE 2 OR
NEUTRAL
Figure 134. SPDT Relay
For a quick and clean installation use the "Relay Box"
service kit 019268F.
NOTE:
Use your smartphone camera to access detailed
instructions for Auxiliary output scheduling with
Raymote.
Summary of Contents for AVIA 264A
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