Gas Line Installation
This gas appliance should be installed by a qualified installer in accordance with
local building codes and with current CAN/CGA - B149.1 or .2 installation codes
for Gas Burning appliances and equipment in Canada and the National Fuel Gas
Code ANSI Z223 in the U.S.A.
1. The gas pipeline can be brought in through either the right or the left side of the
appliance. A knockout is provided at either location to allow for the gas pipe
installation and testing of any gas connection.
2. The gas control inlet is 3/8” NPT. Typical installation layout for rigid pipe is shown
at right.
3. When using
copper
or
flex connector
, use only approved fittings. Always pro-
vide a union so that gas line can be easily disconnected for burner or fan servic-
ing. See gas specification for pressure details and ratings.
4. When a vertical section of gas pipe is required for the installation, a condensa-
tion trap is needed. See CAN/CGA-B149.1 or .2 for code details.
5. For natural gas, a minimum of 3/8” iron pipe with gas minimum pressure of 4.5”
w.c. must be used for supply from the gas meter. Consult with the local gas utility
if any questions arise concerning pipe sizes.
6. A 1/8” NPT plugged tappings are accessible for test gauge connection both on
the inlet and outlet of the gas valve.
7. Turn the gas supply ON and check for leaks. DO NOT USE OPEN FLAME FOR
THIS PURPOSE. Use an approved leak testing solution.
8. The appliance and its individual shutoff valve must be disconnected from the gas
supply piping system during any pressure testing of that system at test pres-
sures in excess of 1/2 PSIG (3.5 KPa).
9. The appliance must be isolated from the gas supply piping system by closing its
individual shutoff valve during any pressure testing of the gas supply piping sys-
tem at test pressures equal to or less than 1/2 PSIG (3.5 KPa).
Note: The gas line connection may be made of 1/2” rigid pipe or an
approved flex connector. Since some municipalities have additional
local codes, it is always best to consult your local authorities and
the current CAN/CGA - B149.1 or .2 installation code in Canada or
the National Fuel Gas code ANSI Z223.1 in the U.S.A.
Gas Specifications
Models
HBZDV4740N
HBZDV4740LP
Fuel
Natural
Propane
Gas Control
Millivolt adjustable Millivolt adjustable
Maximum
40,000 BTU High
36,000 BTU High
Input
27,000 BTU Low
30,000 BTU Low
Maximum
na
na
Output
Orifice Size
31
49
(0 - 4500 ft)
Air Shutter
5/16/.312 Open
Full Open
Gas Inlet Size
S.I.T. 820 Nova, 3/8” NPT
Gas Supply Pressure
Minimum
Normal
Maximum
Natural Gas
5.5”
7”
9”
Liquid Propane
11”
11”
12”
Manifold Pressure
Natural Gas
Liquid Propane
Manifold Pressure High
3.5 IN. W.C./.87 KPa
10 IN. W.C./2.61 KPa
Manifold Pressure Low
1.6 IN. W.C./.40 KPa
6.3 IN. W.C./1.57 KPa
Important:
Always check for gas leaks with a soap and
water solution. Do not use open flame for leak testing.
For the state of Massachusetts a
T-handle gas shut-off valve
must be used on a gas appliance. This T-handle gas shut-off valve
must be listed and approved by the state of Massachusetts. This is
in reference to the state of Massachusetts state code CMR238.
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Содержание HBZDV4740
Страница 23: ...Gas Conversion for Modulator PART C WARNING WARNING 23 ...
Страница 26: ...Configuration 1 Basic manual HI LO and manual ON OFF capabilities 26 ...
Страница 27: ...Receiver Module 584 523 521 221 1001 P221SI Receiver Module 584 523 521 221 1001 P221SI 27 ...
Страница 28: ...Receiver Module 584 523 521 221 1001 P221SI Receiver Module 584 523 521 221 1001 P221SI 28 ...