LAARS 9600 CB - Installation, Operation and Maintenance Instructions - Manual (Page 5)

9600 CB
Page 5
should be located inside the outside wall to increase to
the 4" pipe size. A reducing coupling and 1' of 3" pipe
must be considered as 5 equivalent feet.
NOTE: It is required that a minimum separation of 18" be
maintained between the intake and exhaust terminals and
that both terminals be installed on the same wall of the
building. The intake terminal must not be installed above
the exhaust terminal since this would tend to pull exhaust
gases back into the intake.
1.6 Locating Vent Openings on
Outside Wall
1.6.1 Exhaust Terminal Location
The appropriate Laars side wall vent terminal is
included with the appliance. The terminal must be
located in accordance with ANSI Z223.1/NFPA 54
and applicable local codes. In Canada , the installation
must be in accordance with CSA B149.1 or .2 and
local applicable codes. Consider the following when
installing the terminal:
1.
The exhaust terminal fitting requires a 4" (10cm)
diameter hole through the outside wall. The
center line of this opening must be at least 18"
(46cm) above grade and at least 12" (3' in
Canada) from any other building opening such as
doors, windows, etc. Figure 5A shows the
requirements for direct vent terminal clearances
for the U.S. and Canada.
2. Vent terminals for condensing appliances or
appliances with condensing vents are not
permitted to terminate above a public walkway,
or over and area where condensate or vapor
could create a nuisance or hazard.
3. Locate the vent terminal so that vent gases
cannot be drawn into air conditioning system
inlets.
4. Locate the vent terminal so that vent gases
cannot enter the building through doors,
windows, gravity inlets or other openings.
Whenever possible, locations under windows or
near doors should be avoided.
5. Locate the vent terminal so that it cannot be
blocked by snow. The installer may determine
that a vent must be higher than the minimum
shown in the codes, depending upon local
conditions.
6. Locate the terminal so the vent exhaust does not
settle on building surfaces or other nearby
objects. Vent products may damage such
surfaces or objects.
7. Minimum clearance of 4 feet (1.22m)
horizontally from and in no case above or below,
unless a 4-foot (1.22m) horizontal distance is
maintained, from electric meters, gas meters,
regulators and relief equipment.
Important Note: Massachusetts Code Requirement.
For Sidewall Vented Appliances with Vent Terminals
Located Less Than 4 Feet above grade:
1. Massachusetts Code requires that a CO Detector
and Alarm, listed by an approved third party inspection
agency to ANSI/UL 2034 and complying with NFPA720
(2005 Edition) be installed on each floor level in which
there are bedroom(s), if there is not one already
present. The location shall be in the living space
outside the bedroom(s).
2. An additional CO Detector and Alarm, as indicated
above, shall be located in the room that houses the
appliance and shall be powered by the same electrical
supply as the appliance such that one service switch
serves both the appliance and the CO detector. The
CO detector shall have a battery backup.
3. The vent terminal and if applicable the air intake
terminal shall be the approved Laars terminals. A copy
of this manual shall remain with the appliance at the
completion of the installation.
4. The plate “Gas Vent Directly Below” provided with
the vent terminal shall be mounted at the exterior of the
building, four feet directly above the location of the vent
terminal.
For Sidewall Vented Appliances with Vent Terminal
Located More Than 4 Feet above grade:
Items 1, 2 and 3 above shall apply.
Follow the Installation Instructions provided with the CO
Detectors when installing them. For issues with the
CO Detectors, contact the installing contractor.
1.6.2 Intake Terminal Location
The intake terminal requires a separate 4"
(10cm) diameter hole to install the the intake fitting.
*
Figure 4. Alternate vent terminal installations.
Figure 5.
Multiple units minimum vent terminal separation.