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Innovation - Edge [i] Installation, Operation, Maintenance Manual
CHAPTER 2
– INSTALLATION
OMM-0143_A
• GF
-216
•
9/6/2019
Technical Support
•
(800) 526-0288
•
Mon-Fri, 8 am - 5 pm EST Page 22 of 170
2.8 PRESSURE & TEMPERATURE RELIEF VALVE INSTALLATION
An ASME rated Pressure & Temperature (P&T) Relief Valve must be installed on each
Innovation water heater, on the hot water outlet at the top of the Recirculation Loop Assembly
as shown in Figure 2.7, above. The valve setpoint is 150 psig (1,034 kPa) at 210°F (98.9° C).
A suitable pipe joint compound should be used on the threaded connections. Any excess should
be wiped off to avoid getting any into the valve body. The relief valve should be piped to within 6
inches (15.2 cm) of the floor to prevent injury in the event of a discharge. The relief outlet piping
must be equal to the outlet size of the relief valve without reduction. No valves, restrictions, or
other blockages are allowed in the discharge line. In multiple unit installations the discharge
lines must not be manifolded together. Each must be individually run to a suitable discharge
location.
2.9 CONDENSATE DRAIN & PIPING
The Innovation Water Heater 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 is located on the exhaust manifold at the rear of the unit (Figure 2.9-
1). This drain port must be connected to the Condensate Trap (P/N
99259
), which is packed
within the unit’s shipping container.
PARTIAL REAR VIEW
Figure 2.9-1: Condensate Drain Connection Location
Sample Condensate Trap installation is shown in Figure 2.9-2. 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. The following general guidelines must be
observed to ensure proper condensate drainage:
•
The condensate trap inlet must be level with, or lower than the exhaust manifold drain
port.
•
The base of the condensate trap can be supported to ensure that it
’s level, but that’s not
required.
•
The trap must be removable for routine maintenance (see Section 6.9 for instructions).
•
If a floor drain is not available, a condensate pump can be used to remove the
condensate to a drain.
•
The maximum condensate flow rate is 10 Gallons (37.85 L) per hour.
COLD WATER INLET
2” NPT
DRAIN VALVE
AIR INLET
EXHAUST MANIFOLD
CONDENSATE DRAIN
CONNECTION
3/4” NPT