Condensate Drain & Piping - Watts Aerco BENCHMARK 750 User Manual

Benchmark 750 – 1000 Boiler User Manual - INTERNATIONAL
2.7 CONDENSATE DRAIN & PIPING
The Benchmark Heating Boiler is designed to condense water vapor from the flue products.
Therefore, the installation must have provisions for suitable condensate drainage or collection.
The condensate drain port located on the exhaust manifold (Figure 2-5) must be connected to
the condensate trap (P/N 24441) which is packed separately within the unit's shipping container.
The condensate trap inlet features two integral O-rings and a thumbscrew to allow direct
connection of the drain port into the trap inlet. See the Condensate trap Installation instructions
and Figure 2-6.
EXHAUST
MANIFOLD
1/4" ANALYZER
NPT PORT
Figure 2-5: Condensate Drain Connection Location
A sample condensate trap installation is shown in Figure 2-6. The following general guidelines
must be observed to ensure proper condensate drainage:
• The condensate trap inlet (Figure 2-6) must be level the exhaust manifold drain port.
• The base of the condensate trap must be supported to ensure that it is level (horizontal).
• The trap must be removable for routine maintenance.
While observing the above guidelines, install the condensate trap as follows:
1. Connect the condensate trap inlet to the exhaust manifold drain connection by inserting
the drain port directly into the trap adaptor inlet, and then tightening the inlet thumbscrew,
as shown in Figure 2-6. The inlet features two integral O-rings to prevent leakage.
2. At the condensate trap outlet, install a 3/4" NPT nipple.
3. Connect a length of 1" (2.54 cm) diameter polypropylene hose to the trap outlet and
secure with a hose clamp.
4. Route the hose on the trap outlet to a nearby floor drain.
If a floor drain is not available, a condensate pump can be used to remove the condensate to
drain. The maximum condensate flow rate is 10 gallons (37.8 liters) per hour. The
condensate drain trap, associated fittings and drain line must be removable for routine
maintenance.
OMM-0119_0A
GF-130-I
CHAPTER 2 – INSTALLATION
Condensate Trap Installation
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Ph.: 800-526-0288
PRIMARY
WATER INLET
DRAIN VALVE
CONDENSATE DRAIN PORT
Page 19 of 170
11/03/2016