AERCO AM Series Boiler User Manual - Manual (Page 90)

AM Series Boilers and Water Heaters
CHAPTER 4 – UNIT START-UP
Page 90 of 156 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0100_0B
PRI - 07/14/14
Ph.: 800-526-0288
GF-146
4.1.2 Filling the Heating System
To fill the heating system, proceed as follows:
CAUTION!
The water’s pH must fall within the following limit: 7.5<pH<9.5 and
if the system contains aluminum parts, it must be less than 8.5.
This pH value must be measured after steady condition and after
air purging operations has been done. Water out of the above pH
values can result in premature heat exchanger damage.
Filling the Boiler Heating System
1. Open any automatic air vents in the heating system.
2.
Open the fill valve and proceed to fill the heating system and boiler until the pressure gauge,
item “M” in Figure 4-1, reads the pressure for which the heating system is sized. If you want
to increase the minimum water pressure, set parameter 3022 to the desired value (See
Appendix B).
3. Check that there i
s no water leaking from the fittings. If there is, the leaks must be repaired.
4. Check the pressure gauge during the purging process. If the pressure has dropped, re-open
the fill valve to bring the pressure back to the desired value.
4.2 General Warnings Concerning the Gas Supply
When starting up the unit for the first time the following must be checked:
• That the unit is supplied with the type of fuel that it is configured to use (see Section
3.17.6).
• That the gas supply system is provided with all the safety devices and controls required
under current national and local codes.
• That the vent and combustion air terminals are properly connected and free from any
blockages.
• That the condensate drain tube is properly connected (see Section 3.12).
WARNING!
IF YOU SMELL GAS:
 Do not try to light any appliance.
 Do not touch any electrical switch. Do not use any phone
in your building.
 Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
 If you cannot reach your gas supplier, call the fire
department.
Failure to follow the above steps can result in a fire or explosion
causing property damage, personal injury or loss of life!