in
iustalLATIO"*IN UNC0NFIj^-jYnnrrpTl"»pof the total input rating of all appliances installed
H^ieVs are to be sized to not excee
,he space, for every (50) cub,c feet of
ith the space in which the appliances are installed, through openings not
Rooms communicating directly *.oart fthe unconfined space,
furnished with doors, are cons.dered apa
WVRC270 when installed in unconfined spaces with normal infiltration, having
EXAMPLE: AModel VC or ^vm would need (438) efeet of area
^i]lSoT ceiling and no other gas appnan
3- CHIMNEY AND V^
NTI^tQ be ventedand MUST therefore be connected to agas vent, chimney or
These heaters are esl9Cl/C.tpm tnatjSengineered and constructed so as to develop apositive flow
single-wall metaJ W™^*^^atm0sphere.
^^^S^^^^trBnces as well as ANSI Standard Z223. 1(latest edition) for accepted ven-
ting methods and pract.ces w.th particular attention to:
(a) Vent connectors shall be installed without any downward pitch from the appliances and without any
dips or sags. SEEFIG. 1
(b) Vent connectors shallbe pitched upward from the appliances at least 1/4 inch per foot. SEE FIG. 1
.
(c) The horizontal run of the vent connector shall be as short and direct as possible and the heater
located as near the gas vent or chimney as practical.
(d) Manually operated dampers shall NOT be placed in the vent connectors from the heater.
(e) The size of the vent connector shall be the same size as the vent outlet on the heater.
(f) Vent connectors shall be firmly attached to vent outlet collar of the heater by sheetmetal screws.
(g) Chimney must be in good condition and be free of obstruction to provide good draft for the heater. If
you have any doubts about your chimney, call your Dealer.
(h) Chimney shall extend at least 3feet above the highest point where they pass through the roof of a
building and at least 2feet higher than any portion of any building within 1feet. See Fig. 2
(i) Chimneys shall extend at least 5feet above the highest connected appliance draft hood outlet or flue
collar.
(j) If the home does not have achimney, aMetalbestos or any other approved Type BChimney Package
can be used.
(k) Vent pipe MUST NOT be connected to achimney flue serving aseparate solid fuel burning appliance.
4. The AGA. plate on the heater shows the input rating for which the particular heater is equipped.
D'M
D
P
j^"L
ANT WHEN HEATER IS INSTALLED AT ALTITUDES ABOVE 2,000 FEET, THE INPUT IS TO
BE REDUCED 4PERCENT FOR EACH 1,000 FEET OF ALTITUDE ABOVE SEA LEVEL.
EXAMPLE: VRC235 installed at 4nnn fn.» altitude
Normal Input Ratinn
Less 1fly £35,000 Btu/hr.
ReducpH1,;°00 fGet above sea ,evel 5,600 Btu/hr.
Reduced .nput for 4.000 feet altitude 29,400 Btu/hr.
5. GAS PIPING:
The installation of the DiDinn
and full input capacity the oas q
USt
|
6e done by aQualified gas mephanic. To insure proper performance
quate size. Check with youM i
'
,ne leadin°to the heater from the main supply ,jne shou,d be of ad®"
Installation of aground joinhj* authorities as to the proper size of your particular installation,
heater. n,on 18 squired at the gas inlet connection to the control manifold on the
4