Frontier Oil Heat – PN 10-2021 – October 2021 - 21 -
BOILER OPERATION AND SAFETY CHECKS
Check for proper boiler operation and proper safety operation. Correct any deficiency.
1. DANGER: Verify proper operation of high limit aquastat.
a. Remove all heat and hot water calls (No input lights on left side of manager).
b. Turn System switch off, then remove red sensor lead from the left side quick connect.
c. Restore power. The 100
o
light will flash on the manager’s temperature display, and the burner should start
shortly, in less than a minute.
d. At approximately 205
o
F to 215
o
F, the high limit aquastat should shut off burner.
e. Turn off power and reconnect the red sensor lead.
2. DANGER: Verify proper operation of boiler pressure relief valve by following instructions on pressure relief valve,
which calls for a 'try lever test'. Make sure discharge pipe is properly placed to safely contain discharge and open
relief valve using the try lever.
3. CAUTION: Verify proper operation of the blocked vent shutoff switch with sidewall vented systems.:
a. Remove power from the inducer. (option switch 2 on a Energy Manager)
b. Start burner. Safety lock-out should occur in approximately 1 minute.
c. Restore power to the inducer.
4. NOTICE: Check that each thermostat operates proper zone.
5. NOTICE: The Energy manager provides condensing protection by closing the zone valves when the return drops
below 120
o
F (130
o
F when Option switch #1 is on). The following adjustments will help minimize zone cycling. Bypass
valve must be adjusted to raise return water temperature to approximately 120
o
F. on start up after any zone valve opens.
This will help prevent condensation from occurring in boiler passages.
a. On copper baseboard systems, bypass valve normally should be about ½ open.
b. On large water volume systems or high heat load systems, where the return temperature from the system is
below 120
o
F, open bypass completely and throttle zone returns to increase bypass flow. If returns are still below
120
o
F, set option switch 1 to on.
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