21
viron xt series 2 pumps
Installation Manual
20
viron xt series 2 pumps
Installation Manual
6.
If replacing or selecting a new cleaner, AstralPool
recommend our Robotic Range of Cleaners which
operate independently from the filter pump and
allows the pump to operate at a speed which offers
the maximum energy (and cost) savings.
6.4.3
Use with Gas Heaters
Gas heaters (and electric heat pumps) generally rely
on a water pressure switch to activate the heater
control circuit. When a variable speed pump operates
on low speed the water pressure produced in
generally insufficient to activate the pressure switch
and control circuit within the heater.
If using a compatible AstralPool Gas Heater you can
automatically increase the speed of your Viron XT
Series 2 pump to ensure the water pressure switch is
activated and the heater obtains enough water flow to
operate correctly.
An RJ12 (6 wire flat cable) specifically wired and
obtained from AstralPool will connect your pump and
heater. Refer to Heater Instruction Manual for data
cable connection details.
24V Communication Data
(RJ12 Cable)
Figure 16.
Viron XT Series 2 Pump with RJ12 Cable
Connection
Viron XT Series 2 Pump is connected to Viron Heater
or Other Compatible AstralPool Heater via RJ12 cable
Viron Heater Status
Viron XT Series 2 Pump
Response
When heater is OFF
Runs at default set speed
When ON but not lit
Runs at Medium speed
minimum. The user can use the
buttons to select medium or high
only (low speed button has no
effect). The start-up period is
cancelled.
When flame first lights
Runs at High speed. The user
cannot change the pump’s
speed.
When flame is lost
Runs at default set speed or
Medium speed if heater power
is ON.
Viron XT Series 2 Pump is connected to Viron Heater
or Other Compatible AstralPool Heater via Viron
Connect
Viron Heater Status
Viron XT Series 2 Pump
Response
When heater is OFF
Runs at the user’s manual
speed or chosen default speed
when operating due to timers.
When ON but not lit
Changes to a higher speed
which is configured by the
user in the installation set up
(the “heater ON” speed), or
the speed of the current timer.
The user cannot change to low
speed.
When flame first lights
Runs at high speed. The user
cannot change the pump’s
speed.
When flame is lost
Runs at the user’s manual
speed or the chosen default
speed when operating due to
timers.
