Riverside Hydronics VT.3 Startup Manual

For Detailed Information See Installation & Maintenance Manual
WARNING: If you do not follow these instructions exactly, a fire or explosion may result
causing property damage, personal injury or loss of life.
1. Visually inspect boiler and components for damage and proper installation.
2. Turn off all electrical power to the appliance.
3. Turn off main manual gas valve.
4. Check all electrical connections for tightness, proper voltage, and proper grounding.
5. Check tank to make sure it is full of water. Ensure all plumbing connections to the tank are
tight.
6. Verify that the unit is supplied with the type of gas specified on the rating plate.
7. Connect a test meter to the control for reading the flame response signal.
8. Connect a manometer at the manual gas shutoff valve located at the inlet of the gas train.
Check inlet static gas pressure (must not exceed minimum listed on decal). Leave
manometer in place throughout testing.
9. Connect another manometer to the manifold test port at the shutoff valve closest to the
burner.
10. Turn on all electrical power to the appliance. Reset all safety devices (high limit, pressure
switch, Low-Water-Cutoff, etc.).
11. Turn the manual gas valve to the "ON" position. The Ignition Control should go through its
"Call For Heat" process and ignite the burner (see sequence of operation in manual).
12. The boiler has three temperature controls. The High Limit control is a manual reset non-
adjustable type. The Lower Limit is an auto reset type and can be dial adjusted to operate
just above the set point of the digital Operating Temperature Control. Set the adjustable
digital Temperature Control on the front control panel to deliver the desired water
temperature.
13. Check inlet flow gas pressure (should meet or exceed minimum listed on decal).
14. Measure the manifold gas pressure at the tapping located on the gas cock nearest the
burner to confirm the factory recommended set point (check while firing at both low fire and
high fire, if applicable).
15. Drill hole in vent pipe 12" to 24" from appliance flue outlet (for combustion analysis
equipment).
16. Burner Combustion Adjustment:
Burner combustion should only be adjusted using a combustion analyzer. Do not attempt to
adjust burner by sound or sight. With the burner firing, insert the combustion analyzer probe
into the vent pipe. In order to check combustion at throughout the modulation range it is
necessary to manually adjust the firing rate using the TempTrac control. (Refer to TempTrac
User Manual 34-80 for control details).
START-UP OF VT.3 WATER BOILERS
1
Form Number 34-23 08-10