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through to the VERSA
required to provide those additional functions. Auxiliary
sensors, such as the indirect supply / pool return sen-
sor, connect directly to the VERSA
other enhanced functions depending on the mode
selected. For detailed wiring information, refer to the
I&O Manual for the product being installed.
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 – Analog 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 Analog Input Only
OFF = VERSA IC
DIP Switch #6 – EMS Signal Type
ON = 4-20mA*
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 Active
OFF = Commission Test Inactive
*NOTE: 4-20mA operation requires the use of an
external 500Ω, 1/2W resistor.
PIM™ Operator 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 VERSA
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.
Control Board which is
®
Control Board for
®
Demands Only
®
VERSA IC
Unit Type ID Card
®
The VERSA 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 VERSA
(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.
Fig. 8: VERSA
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.
Quick Start Set-up &
Programming Tips
1. Determine the piping arrangement for your partic-
ular application by referencing the Application
drawings and descriptions on pages 9 to 34.
2. Install the System Sensor, Outdoor/Air Sensor,
Indirect DHW Sensor as necessary as depicted in
the above referenced Application drawing.
3. Wire the sensors to the VERSA IC
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.
CAUTION: Sensor and control wiring must NOT be
run in conduit or chases with line voltage.
8
Platform Ignition Module
®
PIM™ ID Card
®
system as
®
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