AERCO Modulex General Manual - Manual (Page 24)

INSTALLATION, OPERATION & MAINTENANCE
2-8
6. For the gas connection, it is possible to keep the gas manifold inlet on the R.H. side, if desired, or it
can be rotated 180° to have it on the L.H. side. In case of reversal from R.H. side to L.H. side of the
gas manifold, only on the Modulex Model 303 will it be necessary to reverse plug C with the gas
valve fitting A (see gas manifold connections in Figure 2-5).
The boiler and its individual shutoff valve must be disconnected from the gas supply piping system during
any pressure testing of that system at test pressures in excess of 0.5 psi (14” W.C., 3.5 kPa).
The boiler must be isolated from the gas supply piping system by closing its individual manual shutoff valve
during any pressure testing of the gas supply piping system at test pressures equal to or less than 0.5 psi
(3.5 kPa).
The boiler shall be installed such that the gas ignition system components are protected from water
(dripping, spraying, rain, etc.) during appliance operation and service (circulator replacement, condensate
trap, control replacement etc.).
Before operating the boiler, the complete gas train and all connections must be leak tested using a non-
corrosive soap solution.
2.3 DATA PLATE
A sample Data Plate for a Modulex Boiler is shown in Figure 2-7. The data in Table 2-1 following this
Figure indicates the required entries for each Modulex Model.