Pentair MASTERTEMP 125 Installation And User Manual

Rev. B 8/14 MASTERTEMP
®
125 Pool and Spa Heater Installation and User’s Guide
23
HORIZONTAL OR VERTICAL VENTING - POSITIVE PRESSURE (See Figures 15, 16, and 17)
(Category III)
9HQW WKH KHDWHU HLWKHU KRUL]RQWDOO\ RU YHUWLFDOO\ XVLQJ DQ RSWLRQDO YHQW DGDSWHU RI WKH LQFK VSHFLDO JDV DSSURYHG
&DWHJRU\,,,YHQWSLSHV,QVWDOOWKHYHQWSLSHLQDFFRUGDQFHZLWKORFDOFRGHVDQGWKHSURYLVLRQVRIWKH1DWLRQDO)XHO
*DV&RGH$16,=86RUWKHVWDQGDUGV&6$%1DWXUDO*DVDQG3URSDQH,QVWDOODWLRQ&RGHV&DQDGD
DQGWKH YHQW PDQXIDFWXUHU¶V LQVWUXFWLRQV 'R QRWXVHD GUDIW KRRGZLWK WKLV KHDWHU ,QVWDOOWKHYHQW DFFRUGLQJ WR WKH
YHQWPDQXIDFWXUHU¶VGHWDLOHGLQVWUXFWLRQV  1RWH 0DLQWDLQFOHDUDQFH EHWZHHQ WKH YHQW SLSHDQGFRPEXVWLEOH VXUIDFHV
DFFRUGLQJWRWKHYHQWPDQXIDFWXUHU¶VLQVWUXFWLRQVDQGFRGHUHTXLUHPHQWV'RQRWSODFHDQ\LQVXODWLQJPDWHULDOVDURXQG
WKHYHQWRULQVLGHWKHUHTXLUHGFOHDUDLUVSDFHVXUURXQGLQJWKHYHQW6HH
7DEOHIRUPD[LPXPSHUPLVVLEOHYHQWOHQJWKV
NOTE
The allowable vent runs for each vent pipe diameter are different and can not be exceeded. Each 90° elbow
reduces the maximum horizontal vent run by 12 feet and each 45-degree elbow in the vent run reduces the maximum
vent run by 6 ft. See the Table 6 below for the maximum vent lengths using 90° elbows.
 2UGHUDQRSWLRQDODSSOLDQFHDGDSWHUNLW(3HQWDLURIIHUVRSWLRQDODSSOLDQFHDGDSWHUNLWVFDOO&XVWRPHU6HUYLFHDW
IRUPRUHLQIRUPDWLRQ3DUW1RIRU6DI79HQWRU6DI79HQW&,3DUW1R
IRU=9HQW
 5HPRYHWKHRXWVLGHYHQWFRYHU
 ,QVWDOOWKH$SSOLDQFH$GDSWHULQWKH9HQW%RG\RIWKHKHDWHUORFDWHGXQGHUWKHRXWVLGH9HQW&RYHU%HIRUH
FRQQHFWLQJWKH$SSOLDQFH$GDSWHUWRWKH9HQW%RG\ZHWDFOHDQFORWKRUSDSHUWRZHOZLWKLVRSURS\ODOFRKRO
UXEELQJDOFRKRODQGYLJRURXVO\ZLSHWKHVRFNHWRIWKH9HQW%RG\,PPHGLDWHO\ZLSHWKHFOHDQHGVXUIDFHVGU\
ZLWKDFOHDQFORWKRUSDSHUWRZHO5HSHDWIRUWKHH[WHULRURIWKHKHDWHUHQGRIWKH$SSOLDQFH$GDSWHU$WWDFKWKH
DSSOLDQFHDGDSWHUWRWKHYHQWERG\XVLQJWKHDGKHVLYHVSHFL¿HGE\WKHYHQWPDQXIDFWXUHUIROORZLQJWKHYHQW
PDQXIDFWXUHU¶VLQVWUXFWLRQV
Section 3. Installation Instructions
CAUTION
Do NOT combine exhaust vent pipes to a
common exhaust vent in multiple unit
installations. Run separate vent pipes.
CONNECTING SPECIAL METALIC GAS VENT TO THE HEATER
7KH0DVWHU7HPS

KHDWHULVD³&DWHJRU\,,,´DSSOLDQFH
ZKLFKUHTXLUHVDIRXULQFKVSHFLDOJDVDSSURYHG³&DWHJRU\
,,,´YHQWSLSHDQGLVDIRUFHGGUDIWSRRODQGVSDKHDWHUZKLFK
XVHVSRVLWLYHSUHVVXUHWRSXVKÀXHJDVHVWKURXJKWKHYHQWSLSHWR
WKHRXWVLGH)OXHJDVHVXQGHUSRVLWLYHSUHVVXUHPD\HVFDSHLQWR
WKHGZHOOLQJZLWKDQ\FUDFNVRUORRVHMRLQWVLQWKHYHQWSLSH
RULPSURSHUYHQWLQVWDOODWLRQ7KHYHQWSLSHPXVWEHRIDVHDOHG
VHDPFRQVWUXFWLRQVXFKDVWKRVHOLVWHGIRUXVHZLWK³&DWHJRU\
,,,$SSOLDQFHV´DQGIRURSHUDWLQJWHPSHUDWXUHVOHVVWKDQ)
&9HQWSLSHFRQVWUXFWLRQZLOOEHRI8/DSSURYHGQRQ
FRUURVLYHPDWHULDOVXFKDVVWDLQOHVVVWHHODOXPLQXPJDOYDQL]HG$
FRQGHQVDWHWUDSPD\EHQHHGHG7KHXVHRI³$SSURYHG´WKLPEOHV
URRIMDFNVDQGRUVLGHYHQWWHUPLQDOVDUHUHTXLUHGDQGWKHSURSHU
FOHDUDQFHVWRFRPEXVWLEOHPDWHULDOVPXVWEHPDLQWDLQHGLQ
DFFRUGDQFHZLWKW\SHRIYHQWSLSHHPSOR\HG²LQWKHDEVHQFHRI
DFOHDUDQFHUHFRPPHQGDWLRQE\WKHYHQWSLSHPDQXIDFWXUHUWKH
UHTXLUHPHQWVRIWKH8QLIRUP0HFKDQLFDO&RGHVKRXOGEHPHW7KH
YHQWLODWLRQDLUUHTXLUHPHQWVIRUWKH0DVWHU7HPS
®
KHDWHU
DUHVKRZQRQ
SDJH.,WLVUHFRPPHQGHGWKDWYHQWUXQVRYHUIHHW
PD\QHHGWREHLQVXODWHGWRUHGXFHFRQGHQVDWLRQUHODWHGSUREOHPVDQG
RUWKHXVHRIDFRQGHQVDWHWUDSLQWKHYHQWUXQFORVHWRWKHKHDWHUPD\EH
QHFHVVDU\LQFHUWDLQLQVWDOODWLRQVVXFKDVFROGFOLPDWHV+RUL]RQWDO
YHQWV¶0RUOHVVLQOHQJWKGRQRWUHTXLUHDFRQGHQVDWHWHH7KH
0DVWHU7HPSKHDWHULVVXLWDEOHIRUWKURXJKWKHZDOOYHQWLQJ
*Minimum vent length is one foot (.34M),
or in accordance with vent manufacturer’s
instruction, and local and national codes.
Horizontal vents 3’(1M) or less in length
do not require a condensate tee, but must
slope down toward the outlet at 1/4” to the
foot (2cm/M) to allow condensate to drain.
4 in. Special Gas Vent
(Vertical or Horizontal)
No. of 90° Elbows Maximum Length in Feet (M)
0 70 ft. (21.3 M)
1 58 ft. (17.7 M)
2 46 ft. (14.0 M)
3 34 ft. (10.4 M)
4 22 ft. ( 6.7 M)
Table 6.

Pentair MASTERTEMP 125 Specifications

General

BTU Output	125, 000 BTU/hr
Fuel Type	Natural Gas or Propane
Ignition System	Electronic
Minimum Flow Rate	20 GPM
Maximum Working Pressure	50 PSI
Efficiency	82%
Water Connections	1.5 inch
Certifications	ANSI Z21.56
Voltage	120V