OMM-0153_E
• 5/11/2023 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 19 of 124
CENTURION Installation, Operation & Maintenance Manual
SECTION 2: INSTALLATION
2.7 Condensate Drain and Piping
Centurion Water Heaters are designed to condense water vapor from the flue products. The
installation must therefore have provisions for suitable condensate drainage or collection. See
below for information on the condensate drain and piping for the various models.
The condensate drain port located on the exhaust manifold (see Figure 2-10) must be
connected to the condensate trap (P/N
24441C
), which is packed separately within the unit’s
shipping container. Its inlet and outlet connections contain tapped 3/4” NPT ports.
A sample condensate trap installation is shown in Figure 2-10. However, the actual installation
details for the trap will vary depending on the available clearances, housekeeping pad
height/dimensions and other prevailing conditions at the site.
NOTE
: The following guidelines must be observed to ensure proper condensate drainage:
•
Condensate trap inlet must be level with or lower than 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. PVI recommends that a union be
utilized between the exhaust manifold condensate drain port and the trap inlet port.
•
If the condensate trap does not connect directly to the condensate drain port, the pipe
between the drain and the trap must be stainless steel, PVC, polypropylene or aluminum.
•
The concrete housekeeping pad must not extend under the condensate assembly.
Condensate Drain Installation
1. Connect the condensate trap inlet to the exhaust manifold d rain connection using the
appropriate piping components (nipples, reducers, elbows, etc.).
2.
At the condensate trap outlet, install a 3/4” NPT nipple.
3.
Connect 1” (2.54 cm) I.D. polypropylene hose to trap outlet and secure with clamp.
4. Route the hose on the trap outlet to a condensate neutralizer tank.
W A R N I N G !
Use PVC, stainless steel, aluminum, or polypropylene for condensate drain piping. Do
NOT
use carbon or copper components.
If a floor drain is not available, a condensate pump can be used to remove the condensate to an
appropriate drain. The maximum condensate flow rate is
16 gallons (60 liters) per hour.
