Lochinvar F0600187510 - Manual (Page 20)

Commercial Pool Heaters
INSTALLATION
Continued
TABLE-E
Sidewall Vent Kits
Input
Btu/hr
Kit*
(w/Power
Fan Assy.)
Max. Vent
Length
Vent
Termination Only
(500,000 - 750,000
Btu/hr)
Max. Vent
Length
500,000 SVK3006 100 ft. SVK3043 50 ft.
650,000 SVK3008 100 ft. SVK3044 50 ft.
750,000 SVK3008 100 ft. SVK3044 50 ft.
990,000 SVK3053 100 ft. N/A N/A
1,260,000 SVK3054 100 ft. N/A N/A
1,440,000 SVK3054 100 ft. N/A N/A
1,800,000 SVK3055 100 ft. N/A N/A
2,070,000 SVK3055 100 ft. N/A N/A
*These kits include a sidewall venter assembly, vent termination, and
barometric damper.
The Horizontal DirectAire™ vent system is the same as the Sidewall
Venting system, except it pulls combustion air from the outdoors
through a sidewall air inlet. Follow all requirements in Sidewall
Venting, page 17.
The Horizontal DirectAire™ vent system requires you to install two
vent pipes directly to the pool heater; one pipe for flue products and
one for combustion air. Install both vent pipes horizontally with a
sidewall termination point. For this venting option, you must
purchase the DV box accessory from the pool heater manufacturer.
The DV box attaches to the air inlet of the pool heater. The pipe for
combustion air attaches to the DV box.
Make vent connection directly to the top of the pool heater. No
additional draft diverter or barometric damper is required on single
unit installations with a dedicated stack and a negative draft
maintained between 0.04 to 0.08 inches w.c.
The Horizontal DirectAire™ combustion air supply system has
specific vent material and installation requirements. The air inlet
pipe connects directly to the pool heater to supply combustion air.
The combustion air inlet pipe is a dedicated system with one air
inlet pipe per pool heater. You must connect the air inlet pipe to a
combustion air inlet cap as specified in this section.
Figure 23A – Horizontal DirectAire Installation (Illustration
with Sidewall Venter and Sidewall Combustion Air)
Combustion air supplied from outdoors must be free of contaminants
(see Combustion and Ventilation Air, page 7).
Vent Kits
You must order the Horizontal DirectAire™ Vent Kit for sidewall
installation. See TABLE–F for kit numbers. Each kit includes a
sidewall powered vent cap, proving switch, controls, combustion air
inlet cap to supply air to a single pool heater, the transition adapter
to attach the field supplied single wall air inlet pipe to the pool
heater and installation instructions. Purchase flue pipe and air inlet
pipe locally.
The sidewall air inlet cap supplied in the Horizontal DirectAire™
Vent Kit is used to supply combustion air to a single pool heater.
Combustion air supply pipes from multiple pool heaters can not be
combined into a single air inlet pipe and inlet point.
ƽ
WARNING: Only use the sidewall air inlet cap
recommended by the appliance manufacturer. Using
another sidewall air inlet cap may result in
operational problems and the spillage of flue
products. Spillage of flue products can cause
personal injury or death due to carbon monoxide
poisoning.
Venting of Flue Products
Termination point for the flue products must follow the clearance
requirements in Sidewall Vent Termination Clearances and Location
page 11.
4. Horizontal DirectAire™ Venting
IMPORTANT: Before installing a venting system,
follow all venting clearances and requirements
found in the Venting, General Information section,
page 10.
20
For proper operation, a barometric damper is provided for
Horizontal DirectAire
TM installations. The damper will help to
ensure a draft between negative 0.04 to 0.08 inches w.c.