18
UNUSUALLY TIGHT CONSTRUCTION
,QXQFRQ¿QHGVSDFHVLQEXLOGLQJVLQ¿OWUDWLRQPD\EHDGHTXDWH
WR SURYLGH DLU IRU FRPEXVWLRQ YHQWLODWLRQ DQG GLOXWLRQ RI ÀXH
JDVHV+RZHYHULQEXLOGLQJVRIXQXVXDOO\WLJKWFRQVWUXFWLRQIRU
H[DPSOH ZHDWKHU VWULSSLQJ KHDYLO\ LQVXODWHG FDXONHG YDSRU
EDUULHUHWFDGGLWLRQDODLUPXVWEHSURYLGHGXVLQJWKHPHWKRGV
GHVFULEHGLQWKH&RQ¿QHG6SDFHVHFWLRQWKDWIROORZV
CONFINED SPACE
$&RQ¿QHG6SDFHLVRQHZKRVHYROXPH,6 /(667+$1FXELF
IHHWSHU%WXKUFPSHUN:RIWKHWRWDOLQSXWUDWLQJRI
DOODSSOLDQFHVLQVWDOOHGLQWKHVSDFH
2SHQLQJVPXVWEHLQVWDOOHGWRSURYLGHIUHVKDLUIRUFRPEXVWLRQ
YHQWLODWLRQDQGGLOXWLRQLQFRQ¿QHGVSDFHV7KHUHTXLUHGVL]HIRU
WKHRSHQLQJVLVGHSHQGHQWRQWKHPHWKRGXVHGWRSURYLGHIUHVK
DLUWRWKHFRQ¿QHGVSDFHAND the total Btu/hr input rating of all
DSSOLDQFHVLQVWDOOHGLQWKHVSDFH
DIRECT VENT APPLIANCES
$SSOLDQFHVLQVWDOOHGLQD'LUHFW9HQWFRQ¿JXUDWLRQWKDWGHULYHDOO
DLUIRUFRPEXVWLRQIURPWKHRXWGRRUDWPRVSKHUHWKURXJKVHDOHG
LQWDNHDLUSLSLQJDUHQRWIDFWRUHGLQWKHWRWDODSSOLDQFHLQSXW%WX
KUFDOFXODWLRQVXVHGWRGHWHUPLQHWKHVL]HRIRSHQLQJVSURYLGLQJ
IUHVKDLULQWRFRQ¿QHGVSDFHV
EXHAUST FANS
:KHUHH[KDXVWIDQVDUHLQVWDOOHGDGGLWLRQDODLUVKDOOEHSURYLGHG
WRUHSODFHWKHH[KDXVWHGDLU:KHQDQH[KDXVWIDQLVLQVWDOOHG
LQ WKHVDPH VSDFH ZLWK DZDWHU KHDWHU VXI¿FLHQWRSHQLQJV WR
SURYLGH IUHVK DLU PXVW EH SURYLGHG WKDW DFFRPPRGDWH WKH
UHTXLUHPHQWVIRUDOODSSOLDQFHVLQWKHURRPDQGWKHH[KDXVWIDQ
8QGHUVL]HGRSHQLQJVZLOO FDXVHDLUWREH GUDZQLQWRWKHURRP
WKURXJKWKHZDWHUKHDWHU¶VYHQWV\VWHPFDXVLQJSRRUFRPEXVWLRQ
6RRWLQJVHULRXVGDPDJHWRWKHZDWHUKHDWHUDQGWKHULVNRI¿UH
RUH[SORVLRQPD\UHVXOW,WFDQDOVRFUHDWHDULVNRIDVSK\[LDWLRQ
LOUVERS AND GRILLES
7KHIUHHDUHDVRIWKHIUHVKDLURSHQLQJVLQWKHLQVWUXFWLRQVWKDW
IROORZGRQRWWDNHLQWRDFFRXQWWKHSUHVHQFHRIORXYHUVJULOOHVRU
VFUHHQVLQWKHRSHQLQJV
7KH UHTXLUHG VL]HRI RSHQLQJV IRU FRPEXVWLRQ YHQWLODWLRQ DQG
GLOXWLRQDLUVKDOOEHEDVHGRQWKH³QHWIUHHDUHD´RIHDFKRSHQLQJ
:KHUHWKHIUHHDUHDWKURXJKDGHVLJQRIORXYHURUJULOOHRUVFUHHQ
LV NQRZQ LW VKDOO EH XVHG LQ FDOFXODWLQJ WKH VL]H RI RSHQLQJ
UHTXLUHGWRSURYLGHWKHIUHHDUHDVSHFL¿HG:KHUHWKHORXYHUDQG
JULOOHGHVLJQDQGIUHHDUHDDUHQRWNQRZQLWVKDOOEHDVVXPHG
WKDWZRRGORXYHUVZLOOKDYHIUHHDUHDDQGPHWDOORXYHUVDQG
JULOOHVZLOOKDYHIUHHDUHD1RQPRWRUL]HGORXYHUVDQGJULOOHV
VKDOOEH¿[HGLQWKHRSHQSRVLWLRQ
AIR REQUIREMENTS
Breathing Hazard - Carbon Monoxide Gas
Install water heater in accordance with
the Instruction Manual and NFPA 54 or
CAN/CSA-B149.1.
To avoid injury, combustion and ventilation
air must be taken from outdoors.
Do not place chemical vapor emitting
products near water heater.
Breathing carbon monoxide can cause brain damage or
death. Always read and understand instruction manual.
)RUVDIHRSHUDWLRQDQDGHTXDWHVXSSO\RIIUHVKXQFRQWDPLQDWHG
DLUIRUFRPEXVWLRQDQGYHQWLODWLRQPXVWEHSURYLGHG
$Q LQVXI¿FLHQW VXSSO\ RI DLU FDQ FDXVH UHFLUFXODWLRQ RI
FRPEXVWLRQ SURGXFWV UHVXOWLQJ LQ FRQWDPLQDWLRQWKDW PD\ EH
KD]DUGRXVWROLIH6XFKDFRQGLWLRQRIWHQZLOOUHVXOWLQD\HOORZ
OXPLQRXV EXUQHU ÀDPH FDXVLQJ VRRWLQJ RI WKH FRPEXVWLRQ
FKDPEHU EXUQHUV DQG ÀXH WXEHV DQG FUHDWHV D ULVN RI
DVSK\[LDWLRQ
'RQRWLQVWDOOWKHZDWHUKHDWHULQDFRQ¿QHGVSDFHXQOHVVDQ
DGHTXDWHVXSSO\RIDLUIRUFRPEXVWLRQDQGYHQWLODWLRQLVEURXJKW
LQWRWKDWVSDFHXVLQJWKHPHWKRGVGHVFULEHGLQWKH&RQ¿QHG
6SDFHVHFWLRQWKDWIROORZV
1HYHUREVWUXFWWKHÀRZRIYHQWLODWLRQDLU,I\RXKDYHDQ\GRXEWV
RUTXHVWLRQVDWDOOFDOO\RXUJDVVXSSOLHU)DLOXUHWRSURYLGHWKH
SURSHUDPRXQWRIFRPEXVWLRQDLUFDQUHVXOWLQD¿UHRUH[SORVLRQ
DQGFDXVHSURSHUW\GDPDJHVHULRXVERGLO\LQMXU\RUGHDWK
UNCONFINED SPACE
$Q8QFRQ¿QHG6SDFHLVRQHZKRVHYROXPH,6127 /(66 THAN
FXELFIHHWSHU%WXKUFXELFPHWHUVSHUN:RIWKH
WRWDOLQSXWUDWLQJRIDOODSSOLDQFHVLQVWDOOHGLQWKHVSDFH5RRPV
FRPPXQLFDWLQJGLUHFWO\ZLWKWKHVSDFHLQZKLFKWKHDSSOLDQFHV
DUH LQVWDOOHG WKURXJK RSHQLQJV QRW IXUQLVKHG ZLWK GRRUV DUH
FRQVLGHUHGDSDUWRIWKHXQFRQ¿QHGVSDFH
0DNHXS DLU UHTXLUHPHQWV IRU WKH RSHUDWLRQ RI H[KDXVW IDQV
NLWFKHQYHQWLODWLRQV\VWHPVFORWKHVGU\HUVDQG¿UHSODFHVVKDOO
DOVREHFRQVLGHUHGLQGHWHUPLQLQJWKHDGHTXDF\RIDVSDFHWR
SURYLGHFRPEXVWLRQYHQWLODWLRQDQGGLOXWLRQDLU