Control Systems Inc.
HBX EXP 0100 Expansion Module
Version 1.0
E X P - 0 1 0 0 a n u a l P a g e 1
###!
!
The EXP-0100 Expansion odule is designed to be integrated with the HBX CPU-1000 HVAC Controller, it
is not a stand alone control device. The purpose and function of the EXP-0100 is to provide system
expansion capabilities. Its primary use is to add additional boiler stages. For example, 1 CPU-1000 + 1
EXP-0100 can provide a total of 4 boiler stages (when configured as a staging control).
If the Control is configured as a mixing control and more than one boiler is required, the program within
the CPU-1000 anticipates (defaults) that boiler stages are connected through the Expansion odules
(refer to drawing IX 1000-05 of this manual). The EXP-0100 has a spare thermistor input with no fixed
function. The installer may choose to run the spare thermistor as a; room sensor, setpoint sensor, or a
return water temp sensor. The spare demand signal has no dedicated function at the time of print.
The position of setpoint sensors (thermistors) are critical to the correct operation of the Control. Pay
special attention to the wiring of setpoint sensors in relation to actuators, pumps, and multiple boiler
stage relays. Example shown in Application Drawing IX 1000-04.
HBX has developed a series of Expansion odules. At time of product introduction the EXP-0100
(Staging) and EXP-0300 (Pump) odules are made available. These will be followed by the release of
the ZON-0500 (Zone Control), and the OD-0100 ( odulating Output odule) odule.
A combination of these odules are designed to tackle a variety of applications, using a maximum of
six odules in unison with a single CPU-1000 Control Unit. The sequence in which the odules are
connected is very important. Install the odules that you are utilizing in the following order: CPU-1000,
Staging Controls, Pump Controls, odulating Controls, Zone Controls.
The EXP-0100 is designed to be wall mounted, DIN rail mounted, or installed inside a separate electrical
enclosure. The unit should be mounted inside and be protected from falling water and high humidity
conditions. With all the covers in place it is designed to protect any individual from accidental electrical
shock.
35*7-&26.;%32*3)80*6
(&2'*(322*(7*)737-*!
&67-*%32*3)80*6&5*
237)*4*2)*27327-*!73
43:*57-*5*0&<6
