Raypak 5000.72A, Installation & Operating Instructions Manual

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4. Ensure that the entire system is ready for opera-
tion.
a. Water piping properly filled and purged of air?
b. Gas pipe properly installed and purged?
c. Electrical connections properly installed?
d. For cascading systems:
i. Are communication wires properly
installed between Follower PIM™s and
the Master VERSA IC
®
Control? (see
page 57)
ii. Are the DIP switches properly set for
Master/Follower operation?
e. Vent properly installed and terminated?
f. Sensor wires properly routed in separate con-
duit?
g. External interlocks properly installed and
wired to VERSA IC
®
Control (louver interlock,
extractor, external gas valve, etc.)?
5. For CWP (Cold Water Protection) Systems
i. Are the actuators properly installed?
(Refer to CWP configuration page 43)
ii. Is VERSA
®
DIP #3 turned on?
6. Turn on system electricity to allow programming
the VERSA IC
®
Control to be programmed.
7. For H models go to the ADJUST menu and set the
heater MODE as indicated on the Application
drawing – 1, 2 or 3. (Mode 1 is for “Stand-Alone”
or cascade heaters with no Indirect DHW needs;
Mode 2 includes Indirect DHW in the system loop;
and Mode 3 includes Indirect DHW in the boiler
loop). WH and P models do not require a mode
selection as they are configured only for direct
DHW or pool heating operation.
8. Use the Application drawings and descriptions as
a guide to set up the control.
9. A change to a value will be made as soon as you
push the ITEM button, change the MENU screen,
or wait until the 180-second timer expires.
10. Should any error be displayed, check the
Troubleshooting Section to identify the source of
the error and recommended troubleshooting
ideas.
System Sensor Installation
The System Sensor (S3) is required for all selectable
modes unless the units firing rate will be controlled by
an external source such as our Temp Tracker MOD+
Hybrid sequencer. Proper placement and method of
installation are critical for proper operation of the sys-
tem. The sensor must be installed in a drywell in
conjunction with heat conductive compound as
shown in the following images. The drywell must be
installed no more than 5 equivalent feet of pipe/tub-
ing downstream of the de-coupler and installed in
such a way that ensures the sensor bulb is in the
flow path.
CAUTION: Be careful when installing the drywell
not to over-tighten the well as this can damage the
well and may prevent the sensor from fitting properly.
Fig 9: System Sensor Installation
System
Sensor
Thermal
Paste
Drywell
NPT
Fitting