Raypak Xfiire 300B Installation And Operation Manual page 58

Number
Field
SYS System Pump relay turns on
DHW DHW Pump relay turns on
PMP 1 System and Heater Pump relays turn on
CWP CWP Proportional output
Boil 1 Ignite Heater Burner
Min 1 Hold Heater at Min Fire
Max 1 Ramp Heater to Max Fire and hold
Table AC. User Test Fields
• On the first press of the Hold/Skip button, the test step
is held and "HOLD" is flashed at 1Hz.
• On the second press of the Hold/Skip button, the test
step is incremented.
• If heater outlet temperature reaches the PIM Hi-
Limit, the heater will be ramped down to keep the
temperature in a safe range.
• Press of the Hold/Skip button from Heater Max will
End the User Test function.
• CWP MUST be enabled (VERSA DIP #3) VALVE
must be functioning during USER TEST.
NOTE: If USER TEST is performed with Cold Water
Protection enabled (VERSA DIP 3 = ON), allow valve or
VS pump test sequence to complete uninterrupted or a
fault condition may occur.
Toolbox
System Tools
Monitor
Max Heat
OFF
User Test
START
Start Hold / Skip
BTC/PIM SW BTC/PIM SW
Software: RPTS
PIM XXX
Versa XXX XXX
Contact Info
Figure 61. Touchscreen Toolbox Menu
Safety Inspection
1. Check all thermostats and high limit settings.
2. During the following safety checks leave manometers
hooked up, check and record.
3. If other gas-fired appliances in the room are on the
same gas main, check all pressures on the XFiire
with all other equipment running.
4. Check thermostats for ON-OFF operation.
5. Check high limits for ON-OFF operation.
58
Output Action
Defaults
Units °F
Fire Rate
0 %
Stop
Flow Rate GPM
0.0
Log File Size
Factory Diagnostic
↓
Sample count: 0
6. While in operation, check flow switch operation.
7. Check the low gas pressure switch (if provided). (For
proper adjustment, use the attached manometers, if
available, to set pressure. The scales on the switch
are approximate only.) Low gas pressure switch (if
provided) must be set at 3" WC for natural gas and
propane gas.
8. Make sure that the high gas pressure switch is set to
3" WC for both natural gas and propane gas.
Finishing
Record all data on the "Start-up Checklist" located at the
back of this manual.
Disconnect the manometers and reconnect the cap on the
fan pressure tee and reinsert the sealing screws into the
bleedle valves.
Start-up is complete and the heater should be operating
properly.
Follow-Up
Safety checks must be recorded as performed.
Turn heater on. After main burner ignition:
1. Check manometer for proper readings.
2. Cycle heater several times and re-check readings.
3. Remove all manometers and replace caps and
screws.
4. Check for gas leaks one more time.
5. To prepare for possible "limp-along" operation (if
communication is ever lost between the VERSA and
the PIM), set the operator Set Point potentiometer
on the PIM (See Figure 29) to the desired target
setpoint.
Leak Test Procedure: Dual-Seat Gas Valve
Proper leak testing requires three pressure test points in
the gas train. Remove the upper front panel to access the
gas valve for this test. See Figure 59.
Test point A is a bleedle valve located upstream of the
0 hrs
combination gas valve on the supply manifold.
↑
Test point B is a bleedle valve located between the two
automatic gas valve seats.
Test point C is a bleedle valve located downstream of both
automatic gas valve seats and upstream of the manual
valve. See Figure 62.
These tests are to be conducted with the electrical power
to the heater turned OFF.
1. Manually close the downstream leak test valve.
2. Open the bleedle valve at test point A and connect
a manometer to it. Verify that there is gas pressure
and that it is within the proper range (NOTE: must
not exceed 14" WC).