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INTRODUCTION
This instruction manual will help you obtain a safe, efficient, dependable installation for your appliance
and vent system. Please read and understand these instructions before beginning your installation.
The model DV23ZC is a sealed combustion, air circulating gas appliance designed for residential and
mobile home applications. The appliance must be installed with Dura-Vent GS vent system that is
routed to outside atmosphere. It is also listed for bedroom installations.
This appliance is designed to operate on natural or propane gas. A millivolt gas control valve with piezo
ignition system provides safe, efficient operation. No external electrical power is required to operate the
gas valve and burner. 120VAC is required to operate the room air fan.
This appliance complies with National Safety Standards and is tested and listed by (ITS) Intertek Testing
Services (Warnock Hersey) to ANSI Z21.88-2002 and CSA 2.33-2002 ISA CAN/CGA-2.17-M91-
Appliance for use at high altitudes. Installation must conform to local codes. In the absence of local
codes, installation must comply with the current
National Fuel Gas Code, ANSI Z223.1/NFPA54..
(In Canada, installation must comply with the current CAN-1B149 installation code.)
Approved for manufactured (Mobile) home installation. For mobile housing, Title 24 CFR, Part
3280 or when such a standard is not applicable, the standard for manufactured home installation, ANSI /
NCBS A225.1 or standard for gas equipped recreation vehicles and mobile housing, CSA Z240.4.
DO NOT ATTEMPT TO ALTER OR MODIFY THE CONSTRUCTION OF THE
APPLIANCE OR ITS COMPONENTS. ANY MODIFICATION OR ALTERATION
MAY VOID THE WARRANTY, CERTIFICATION AND LISTINGS OF THIS UNIT.
SPECIFICATIONS - MODEL DV23ZC
GAS: NAT. L.P.
HIGH FIRE 22,000 BTU 22,000 BTU
LOW FIRE 14,000 BTU 17,600 BTU
GAS INLET PRESSURE: NAT. L.P.
MAX. INPUT 10.5" W.C. 14.0" W.C.
MIN. INPUT *5.0" W.C. 10.5" W.C.
*5.0" W.C. is minimum inlet gas supply pressure for the purpose of input adjustment.
MANIFOLD PRESSURE: NAT. L.P.
3.5" W.C. 10.0" W.C.
STEADY STATE EFFICIENCY:
NATURAL GAS 77.10%
L.P. GAS 77.10%
FLUE VENT 4" INNER, 6" OUTER; DURA-VENT MODEL GS
SAFETY AGA CERTIFIED PILOT GENERATOR, MILLIVOLT
SYSTEM ACTIVATED WITH SWITCH OR THERMOSTAT.
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