Introduction; Versa ® Control Board - Raypak VERSA IC Installation & Operating Instructions Manual

Introduction

The Raypak VERSA
®
control system consisting of the following components:
• VERSA Control Board
®
• VERSA Display Board
®
• VERSA Platform Ignition Module (PIM)™ in HSI,
®
DSI or Supervised Pilot Ignition
• ID Card
• Water Sensors (up to 5)
• Vent Sensor
• Outdoor Air Sensor
INLET (S2) OUTLET (S1)
Fig. 1: Water Sensors
Fig. 2: Outdoor Air Sensor (S4)
The VERSA IC control system provides integrated
®
functions of automatic ignition control, thermostat con-
trol, high temperature limit control, diagnostic
enumeration, safety interlock, domestic hot water
(DHW) override, Cold Water Protection (CWP) and
several options for external heater control for Raypak
commercial boilers, water heaters and pool heaters.
The VERSA IC control system controls the heater
®
pump, system pump and indirect DHW pump simulta-
neously as needed.
IC is an appliance integrated
FIELD
INSTALLED
(S5, S6, S3)
In addition, the VERSA IC
cading control of multiple units up to 4 units total
without the need for an external sequencer. The
VERSA IC control system is Modbus ready for easy
®
external communication and control.
VERSA Control Board
®
The VERSA Control Board provides high-level func-
®
tionality for the VERSA IC
interlock connections, cascading heater connections
and VERSA Display Board connections. The VERSA
®
IC control system allows "limp-along" operation via
®
the PIM™ if the VERSA
inactive or if the communications between the
VERSA Control Board and the PIM™ are terminated
®
for any reason. This "limp-along" mode operation is
outlined in more detail starting on page 62.
VERSA Control Board is ANSI Z21.23 certified as a
®
controller.
F6018C
LED Out
Diagnostics
Power On
Call For Heat
Burner On
Service
Raypak
VERSA
CN6
#013935F
Power: 24 V (ac) ± 10% 50/60 Hz 5.2 VA 215 mA
Relays: 240 V (ac) 5 A
CN5
Condensate Switch
Vent Temp Limit
Auto High Limit
Low Water
Blocked Vent
Low Gas Press
High Gas Press
(Extra)
CN8
Water Flow Switch
Blower Air Switch
Factory Option 1
Factory Option 2
1 2 3 4 5 6 7 8
Factory Option 3
1049-01
Fig. 3: VERSA
4
control system allows cas-
®
control system. It has field
®
Control Board becomes
®
Remote LCD
CN7
Com
Mod +
CWS/CWR
CN3
GND
GND
RS485-A
RS485-B
GND
ModBus-A
ModBus-B
Extra
ON
158033
Control Board Designed and assembled in Canada
®
The
CN1
S7
S6
CN4
CN2