Benchmark Platinum-Edge [ii]: Installation Manual
SECTION 2
– INSTALLATION
OMM-
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2.4.3 Housekeeping Pad Requirements
To ensure proper condensate drainage, the unit must be installed on a level concrete
“housekeeping” pad. The unit must be positioned on the pad such that the condensate
assembly is
not
located over the pad, as shown below.
The minimum thickness of the concrete “housekeeping” pad depends on two factors:
•
Which Benchmark model you’re installing
•
Whether the unit will connect to a Condensate Neutralizer tank.
The minimum pad thickness for installations
without
a Condensate Neutralizer tank are:
•
Benchmark 750 & 1000:
4 to 6 inches
(10.2 to 15.2 cm)
•
Benchmark 1500 to 6000:
4 to 8 inches
(10.2 to 20.3 cm)
If you are using the AERCO Condensate Neutralizer Tank (P/N
89030
), you must ensure
enough height for the condensate to drain into the condensate trap, then into the neutralizer
tank, and then to the drain. This may require that a pit be dug for the Neutralizer Tank. For more
information on the Condensate Neutralizer Tank, see Technical Instructions TID-0074.
The following table specifies the minimum pit depth for the AERCO Condensate Neutralizer
Tank (P/N
89030
) if the boiler is installed on a
4" pad
, and the pad height if the Neutralizer Tank
must be installed on the floor; note, in all cases a
6” pad
eliminates the need to a pit.
BMK Model
Minimum Pit Depth
Pad Height Without Pit
750/1000
Pit not required
4"
1500/2000
1-
1/4”
5-1/4"
2500/3000
1”
5”
4000/5000N
1-
3/4”
5-
3/4”
5000/6000
Pit not required
4"
.
Figure 2-3: Condensate Neutralizer Tank Installation
Trap
Support
Housekeeping
Pad
Condensate
Neutralizer
