8
PIM™ DIP Switches
There is an 8-position DIP switch on the PIM™ that
can be field configurable during commissioning. The
UP position is “ON” and the DOWN position of each
DIP switch is “OFF”. The items in BOLD below repre-
sent factory defaults settings.
DIP Switch #1 – Operator Differential
ON = Manual Differential
OFF = Auto Differential
DIP Switch #2 – nalog Input Type
ON = Direct Drive
OFF = Target Temperature
DIP Switch #3 – Pump Post Purge
ON = Pump Post Purge Active
OFF = Pump Post Purge Inactive
DIP Switch #4 – Pump Exercise Enable
ON = Pump Exercise Active
OFF = Pump Exercise Inactive
DIP Switch #5 – EMS/Demands
ON = EMS nalog Input Only
OFF = VERSA IC®Demands Only
DIP Switch #6 – EMS Signal Type
ON = 4-20m *
OFF = 0-10 VDC
DIP Switch #7 – Freeze Protection
ON = Freeze Protection Active
OFF = Freeze Protection Inactive
DIP Switch #8 – Commission Test
ON = Commission Test ctive
OFF = Commission Test Inactive
*NOTE: 4-20m operation requires the use of an
external 500Ω, 1/2W resistor.
PIM™ perator Set-Point Dial
The PIM™ has a set-point dial that is used to deter-
mine the operator set-point applied to the boiler outlet
sensor during “limp-along” operation of the VERS
IC®Control System. The default position of the opera-
tor set-point applied to the boiler outlet sensor dial is
the maximum set-point, which is defined by the PIM™
parameters defined by the ID card. The dial can be
adjusted down to a user-defined level between the
minimum setting of 70°F or the maximum allowed by
the ID card. This function is only active during
“limp-along” operation.
VERSA IC®Unit Type ID Card
The VERS IC®Identification Card (ID Card) is a small
circuit card that determines the operating parameters
for each individual model by unlocking the correct pro-
gram within the VERS ®Platform Ignition Module
(referred to simply as PIM™ throughout the rest of this
manual). It is permanently affixed to the chassis of the
heater and MUST be present for the heater to operate.
DANGER: In the event of ID Card failure, field
replacement can only be performed by a Raypak
Employee or contracted Representative and must be
replaced with an ID Card of the same number.
Serious risk of severe personal injury, death or sub-
stantial property damage if not correctly serviced.
Fig. 8: VERSA®PI ™ ID Card
through to the VERS ®Control Board which is
required to provide those additional functions. uxiliary
sensors, such as the indirect supply / pool return sen-
sor, connect directly to the VERS ®Control Board for
other enhanced functions depending on the mode
selected. For detailed wiring information, refer to the
I&O Manual for the product being installed.
Quick Start Set-up &
Programming Tips
1. Determine the piping arrangement for your partic-
ular application by referencing the pplication
drawings and descriptions on pages 9 to 34.
2. Install the System Sensor, Outdoor/ ir Sensor,
Indirect DHW Sensor as necessary as depicted in
the above referenced pplication drawing.
3. Wire the sensors to the VERS IC®system as
described on the wiring diagram of the respective
model (see model I&O wiring diagrams). Sensor
wires should be routed to the heater in separate
conduit.
CAUTI N: Sensor and control wiring must NOT be
run in conduit or chases with line voltage.
