9
CDVZ Series Direct Vent Gas Fireplace
20014621
Gas Specifications
Max.
Min.
Input
Input
Model
Fuel Gas Control BTU/h BTU/h
36CDVZRRN Nat
Millivolt
21,000 14,700
36CDVZRRP* Prop
Millivolt
21,000 15,750
36CDVZTRN Nat
Millivolt
21,000 14,700
36CDVZTRP* Prop
Millivolt
21,000 15,750
*Using conversion kit
Installation
1. Carefully unwrap the remote wire that is attached to the
valve. There are two 1/2” (13 mm) knockouts, one on
each side of the outer casing.
2. Remove the knockout desired and insert the plastic
snap bushing on the remote wire in the 1/2” hole. Feed
the remote wire through the outer casing.
3. Attach the wire to an ON/OFF switch (not supplied) and
install the switch into the receptacle box. (Fig. 8)
Do not wire the remote ON/OFF wall switch
for the gas fireplace to the 120 volt power
supply.
Remote ON/OFF Switch
Always check for gas leaks with a mild soap
and water solution. Do not use an open flame
for leak testing.
FP297A
INSTA VENT FREE
UVHB26 GAS SUPPLY
7/1/98
FP297A
1/2” Gas Supply
1/2” NPT x 1/2” Flare Shut-
off Valve
3/8” Flex Line
(From Valve)
Fig. 7
Typical gas supply installation.
TP
TH
TP
TH
FP1224
Remote switch
11/02
Remote ON/OFF Switch
or Thermostat
or Remote Control
Gas
Control
Valve
FP1224
Fig. 8
Remote switch wiring diagram.
Gas Line Installation
When purging the gas lines, the front window
frame assembly must be removed.
The gas pipeline can be brought in through the rear of the
appliance as well as the bottom. Knockouts are provided
on the bottom behind the valve to allow for the gas pipe
installation and testing of any gas connection. It is most
convenient to bring the gas line in from the rear right side of
the valve as this allows fan installation or removal without
disconnecting the gas line.
The gas line connection can be made with properly tinned
3/8” copper tubing, 3/8” rigid pipe or an approved flex con-
nector. Since some municipalities have additional local
codes, it is always best to consult your local authority and
the National Fuel Gas Code, ANSI Z223.1/NFPA 54 in the
USA or the CSA-B149.1 installation code.
The gas control is equipped with a captured screw type
pressure test point, therefore it is not necessary to provide
a 1/8” test point up stream of the control.
When using copper or flex connector use only approved
fittings. Always provide a union when using black iron pipe
so the gas line can be easily disconnected for burner or
fan servicing. See gas specification for pressure details
and ratings.
The fireplace valve must not be subjected to any test pres-
sures exceeding 1/2 psi. Isolate or disconnect this and
any other gas appliance control from the gas line when
pressure testing.
Inlet Minimum
5.5” w.c.
11.0” w.c.
Inlet Maximum
14.0” w.c.
14.0” w.c.
Manifold Pressure
3.5” w.c.
10.0” w.c.
Gas Inlet and Manifold Pressures
Natural
LP (Propane)
High Elevations
Input ratings are shown in BTU per hour and are
certified without deration for elevations up to 4,500
feet (1,370 m) above sea level.
For elevations above 4,500 feet (1,370 m) in USA,
installations must be in accordance with the cur-
rent ANSI Z223.1/NFPA 54 and/or local codes having
jurisdiction.
In Canada, please consult provincial and/or local
authorities having jurisdiction for installations at
elevations above 4,500 feet (1,370 m).