2 - code and standards approvals, 3 installation flexibility, Installation, operation & maintenance – AERCO Modulex High Pressure Manual User Manual

Page 10

INSTALLATION, OPERATION & MAINTENANCE

1-2

1.2 - CODE AND STANDARDS APPROVALS

MODULEX has been reviewed for compliance with the applicable sections of the following North
American Standards:

Z21.13:

GAS FIRED LOW PRESSURE STEAM AND HOT WATER BOILERS

ASME SECTION IV:

BOILER AND PRESSURE VESSEL CODE RULES FOR CONSTRUCTION
OF HEATING BOILERS

BTS 2000:

TESTING STANDARD METHOD TO DETERMINE EFFICIENCY OF
COMMERCIAL SPACE HEATING BOILERS

SCAQMD Rule
1146.2:

NOx EMISSIONS FROM WATER HEATERS AND SMALL BOILERS

CSD-1-2004:

CONTROLS AND SAFETY DEVICES FOR AUTOMATICALLY FIRED
BOILERS

Table 1-1. – Modulex Boiler Output Range, Turn-Down Ratio & Condensate Production

Output Range MBH

(KW)

Condensate Production [gph (l/h)]

Heat

Modules Model Min. Max.

Turn Down

Ratio

Min. Max.

2 303

41(12) 279

(82)

6:1

1.3 (5)

3.4 (13)

454

41(12)

418 (122)

10:1

1.9 (7.3)

5.3 (20)

606

41(12)

558 (163)

13:1

2.7 (10.1)

7.1 (27)

5 757

41(12)

696

(204) 16:1 3.3 (12.6)

9.0 (34)

6 909

41(12)

835

(245) 20:1 4.0 (15.1)

10.6 (40)

7 1060

41(12) 975

(286) 23:1 4.6 (17.6)

12.4 (47)

MBH = 1000 Btu/hr

1.3 INSTALLATION FLEXIBILITY

The Modulex boiler allows for installation flexibility, i.e. it is suitable to be connected with the water
supply and return and the gas connections on the Right Hand (R.H.) side (standard delivery condition)
or on the Left Hand (L.H.) side. This is accomplished by reversing the gas and water manifolds utilizing
the instructions supplied with the boiler. The same is true for the vent pipe connection, which at the
installation, can be moved from the R.H. side (standard delivery condition) to the L.H. side or to the rear
of the boiler. The installation flexibility features include the following:

• Modulex can be installed in a multiple boiler system by the combination of two or more boilers.
• Gas connecting pipes, supply

return water pipes can be arranged for any connection (by either

the left or right hand side of the unit, the unit is shipped with all connections on the right hand
side as viewed from the front of the unit).

• Vent pipe, adjustable on the right, the left and behind the heating system.