Robertshaw 720 Series Installation and user guide
INSTALLATION DATA
720 SERIES
DUAL VALVE GAS HEATING CONTROLS
The Robertshaw® 720 Series Gas Controls are designed for a wide
ǀĂƌŝĞƚLJŽĨŚĞĂƟŶŐĂƉƉůŝĐĂƟŽŶƐĂŶĚĐĂŶďĞƵƐĞĚƚŽƌĞƉůĂĐĞŵŽƐƚĚƵĂů
;ƐŝdžĨƵŶĐƟŽŶͿǀĂůǀĞƐdŚĞLJĂƌĞĂǀĂŝůĂďůĞŽŶůLJŝŶĂϮϰǀŽůƚŵŽĚĞůƵƐĞĚ
ǁŝƚŚĂĐŽŶƐƚĂŶƚƉŝůŽƚDŽĚĞůƐĂƌĞĂǀĂŝůĂďůĞǁŝƚŚĂŶĚǁŝƚŚŽƵƚĂƉƌĞƐƐƵƌĞ
ƌĞŐƵůĂƚŽƌhŶŝͲ<ŝƚƐΠĂƌĞĨĂĐƚŽƌLJƐĞƚĂƚϯϱtĨŽƌŶĂƚƵƌĂůŐĂƐďƵƚĐĂŶ
ďĞĐŽŶǀĞƌƚĞĚƚŽ>WďLJŝŶƐƚĂůůŝŶŐƚŚĞƌĞŐƵůĂƚŽƌĐŽŶǀĞƌƐŝŽŶŬŝƚŝŶĐůƵĚĞĚ
;^ĞĞZĞŐƵůĂƚŽƌŽŶǀĞƌƐŝŽŶƐĞĐƟŽŶͿ
dŚĞϳϮϬ^ĞƌŝĞƐƵƐĞĚǁŝƚŚĂĐŽŶƐƚĂŶƚƉŝůŽƚŝƐĂƐŝdžĨƵŶĐƟŽŶǀĂůǀĞ
ŝŶĐŽƌƉŽƌĂƟŶŐĂŵĂŶƵĂůǀĂůǀĞƐĂĨĞƚLJƐŚƵƚŽīŵĂŐŶĞƚĚƵĂůĂƵƚŽŵĂƟĐ
ǀĂůǀĞƐ;ŚĞŶĐĞƚŚĞƚĞƌŵĚƵĂůǀĂůǀĞƐͿŵĂŝŶŐĂƐƌĞŐƵůĂƚŽƌĂŶĚƉŝůŽƚ
ĂĚũƵƐƚŵĞŶƚ/ƚĨĞĂƚƵƌĞƐĂŶŝŶƚĞŐƌĂůŵĂŶƵĂůƐĞůĞĐƚŽƌƵƐĞĚƚŽƐĞůĞĐƚĨƌŽŵ
ĨŽƵƌŐĂƐŇŽǁƉŽƐŝƟŽŶƐͲŽīŽŶƉŝůŽƚĂŶĚƐĞƚdŚĞƐĞƚƉŽƐŝƟŽŶ
ƉƌŽǀŝĚĞƐƉŝůŽƚŽŶůLJŐĂƐŇŽǁĚƵƌŝŶŐŵĂŐŶĞƚĞŶĞƌŐŝnjŝŶŐĂŶĚůŽĐŬƵƉ
ƵŝůƚͲŝŶƐƚŽƉƐƐĞƌǀĞƚŽƉƌĞǀĞŶƚĂĐĐŝĚĞŶƚĂůƐĞƫŶŐƚŽƚŚĞŽīƉŽƐŝƟŽŶ
tŝƌŝŶŐĐŽŶŶĞĐƟŽŶƐŵĂŶƵĂůƐĞůĞĐƚŽƌĂŶĚĂĚũƵƐƚŵĞŶƚƐĂƌĞĞĂƐŝůLJ
ĂĐĐĞƐƐŝďůĞŽŶƚŚĞƚŽƉŽĨƚŚĞǀĂůǀĞtŝƚŚĂϯͲϵϭϲƐǁŝŶŐƌĂĚŝƵƐƚŚĞϳϮϬ
^ĞƌŝĞƐůĞŶĚƐŝƚƐĞůĨǁĞůůƚŽƌĞƉůĂĐŝŶŐŵĂŶLJKDǀĂůǀĞƐŽŶƚƌŽůƐĂƌĞ
ŵƵůƟƉŽƐŝƟŽŶĂŶĚĐĂŶďĞŵŽƵŶƚĞĚŝŶĂŶLJƉŽƐŝƟŽŶ;ĞdžĐĞƉƚƵƉƐŝĚĞĚŽǁŶͿ
dŽƉƌĞǀĞŶƚƵŶƐĂĨĞĂƩĞŵƉƚƐĂƚƌĞƉĂŝƌƐƉĞĐŝĂůƐĐƌĞǁƐĂƌĞƵƐĞĚĂŶĚ
ƌĞƉůĂĐĞŵĞŶƚƉĂƌƚƐĂƌĞEKdĂǀĂŝůĂďůĞ
SPECIFICATIONS
ůĞĐƚƌŝĐĂůZĂƟŶŐƐ ϮϰsϱĂŵƉƐ
WƌĞƐƐƵƌĞZĞŐƵůĂƚŽƌ
EĂƚƵƌĂů'ĂƐ ĨĂĐƚŽƌLJƐĞƚĂƚϯϱt
>W'ĂƐ ĨĂĐƚŽƌLJƐĞƚĂƚϭϭϬt
WŝůŽƚKƵƚůĞƚ ϭϰƚƵďŝŶŐ
ŵďŝĞŶƚdĞŵƉĞƌĂƚƵƌĞͲϰϬΣƚŽϭϳϱΣ&
DĂdžŝŵƵŵ/ŶůĞƚWƌĞƐƐƵƌĞϳtͲŶĂƚƵƌĂůŐĂƐ
REGULATION CAPACITIES (BTU’S)
SIZE
TYPE GAS
NATURAL L.P.
MIN. MAX. MIN. MAX.
ϯϴdžϯϴ ϭϱϬϬϬ ϭϳϱϬϬϬ ϭϱϬϬϬ ϮϴϬϬϬϬ
ϭϮdžϯϴ ϭϱϬϬϬ ϭϳϱϬϬϬ ϭϱϬϬϬ ϮϴϬϬϬϬ
ϭϮdžϭϮ ϭϱϬϬϬ ϮϬϬϬϬϬ ϭϱϬϬϬ ϯϬϬϬϬϬ
ϭϮdžϯϰ ϭϱϬϬϬ ϮϬϬϬϬϬ ϭϱϬϬϬ ϯϬϬϬϬϬ
ϯϰdžϯϰ ϭϱϬϬϬ ϮϬϬϬϬϬ ϭϱϬϬϬ ϯϬϬϬϬϬ
PIPING
ϭŚĞĐŬƌĞƉůĂĐĞŵĞŶƚǀĂůǀĞĨŽƌŵƵůƟƉůĞŽƵƚůĞƚƐ;ƐŝĚĞŽƵƚůĞƚƐͿ/ĨŝƚŚĂƐ
ƚŚĞŵďĞƐƵƌĞĂůůƵŶƵƐĞĚŽƵƚůĞƚƐĂƌĞƉůƵŐŐĞĚƵƐŝŶŐƚŚĞƐŽĐŬĞƚƉůƵŐƐ
ƉƌŽǀŝĚĞĚ
ϮWŝƉĞŽƌƚƵďŝŶŐŵƵƐƚďĞĐůĞĂŶĂŶĚĨƌĞĞŽĨƐĐĂůĞĂŶĚĚŝƌƚ
ϯDĂŬĞƐƵƌĞŐĂƐƉŝƉŝŶŐŝƐƉƌĞƐƐƵƌĞƚĞƐƚĞĚďĞĨŽƌĞĐŽŶƚƌŽůŝƐĐŽŶŶĞĐƚĞĚ
,ŝŐŚƉƌĞƐƐƵƌĞĐĂŶĚĂŵĂŐĞĐŽŶƚƌŽůĐĂƵƐŝŶŐĂŚĂnjĂƌĚŽƵƐĐŽŶĚŝƟŽŶŽ
ŶŽƚƐƵďũĞĐƚĐŽŶƚƌŽůƚŽŵŽƌĞƚŚĂŶϭϮW^/;ϭϰtͿŝŶůĞƚƉƌĞƐƐƵƌĞ
ϰ/ĨŝƚŝƐŶŽƚĂůƌĞĂĚLJŝŶƐƚĂůůĞĚĂĚƌŝƉůĞŐ;ƐĞĚŝŵĞŶƚƚƌĂƉͿŵƵƐƚďĞ
ĂĚĚĞĚƚŽƚŚĞŐĂƐƐƵƉƉůLJůŝŶĞƚŽƚŚĞĐŽŶƚƌŽů;^ĞĞĮŐƵƌĞƚŽƚŚĞƌŝŐŚƚͿ
ůůƉŝƉŝŶŐŵƵƐƚĐŽŵƉůLJǁŝƚŚůŽĐĂůĐŽĚĞƐĂŶĚŽƌĚŝŶĂŶĐĞƐĂŶĚǁŝƚŚ
EĂƟŽŶĂů&ƵĞů'ĂƐŽĚĞ;E^/ϮϮϯϭE&WEŽϱϰͿ
INSTALLATION INSTRUCTIONS
Turn off gas supply and electrical power to equipment
before servicing.
CAUTION
d,/^s/^,Kh>/E^d>>zYh>/&/
d,E//Et/d,hZ'Z&KZ^&dz^/DWZKWZ
/E^d>>d/KEKh>Z^h>d/E,ZKh^KE/d/KE
ϱ
hƐŝŶŐƉŝƉĞƚŚƌĞĂĚĐŽŵƉŽƵŶĚƐƵŝƚĂďůĞĨŽƌƚŚĞŐĂƐďĞŝŶŐƵƐĞĚĂƉƉůLJĂ
ƐŵĂůůĂŵŽƵŶƚŽŶƚŚĞŵĂůĞƉŝƉĞƚŚƌĞĂĚƐ;ŽŶŽƚƵƐĞdĞŇŽŶƚĂƉĞŽƌ
dĞŇŽŶĐŽŵƉŽƵŶĚͿ>ĞĂǀĞƚŚĞĮƌƐƚƚǁŽƚŚƌĞĂĚƐĐůĞĂŶEĞǀĞƌƵƐĞ
ĐŽŵƉŽƵŶĚŽŶĨĞŵĂůĞƚŚƌĞĂĚƐĂƐŝƚŵŝŐŚƚďĞƉƵƐŚĞĚŝŶƚŽƚŚĞĐŽŶƚƌŽů
ďŽĚLJ
ϲdŚĞŐĂƐǀĂůǀĞŝƐŵƵůƟƉŽƐŝƟŽŶĂŶĚĐĂŶďĞŵŽƵŶƚĞĚŝŶĂŶLJƉŽƐŝƟŽŶ
;ĞdžĐĞƉƚƵƉƐŝĚĞĚŽǁŶͿǁŝƚŚŽƵƚĂīĞĐƟŶŐŝƚƐŽƉĞƌĂƟŽŶ
ϳ/ŶƐƚĂůůŐĂƐǀĂůǀĞƐŽŐĂƐŇŽǁĐŽŶĨŽƌŵƐǁŝƚŚƚŚĞŝŶůĞƚĂŶĚŽƵƚůĞƚŽĨ
ƚŚĞĐŽŶƚƌŽů
ϴDO NOTŝŶƐĞƌƚĂŶLJŽďũĞĐƚŽƚŚĞƌƚŚĂŶƐƵŝƚĂďůĞƉŝƉĞŽƌƚƵďŝŶŐŝŶƚŚĞ
ŝŶůĞƚŽƌŽƵƚůĞƚŽĨƚŚŝƐĐŽŶƚƌŽů/ŶƚĞƌŶĂůĚĂŵĂŐĞŵĂLJŽĐĐƵƌĂŶĚƌĞƐƵůƚ
ŝŶĂŚĂnjĂƌĚŽƵƐĐŽŶĚŝƟŽŶďĂĐŬƵƉǁƌĞŶĐŚƐŚŽƵůĚŽŶůLJďĞƵƐĞĚŽŶ
ƚŚĞǁƌĞŶĐŚďŽƐƐƉƌŽǀŝĚĞĚĨŽƌƚŚŝƐƉƵƌƉŽƐĞ;ƐĞĞĚƌĂǁŝŶŐͿŶĞǀĞƌŽŶ
ďŽĚLJŽĨƚŚĞĐŽŶƚƌŽůĂƐƚŚŝƐĐŽƵůĚĚŝƐƚŽƌƚƚŚĞĐĂƐƟŶŐNOTE:ŽŶŽƚ
ŽǀĞƌƟŐŚƚĞŶĂŶLJƉŝƉĞĐŽŶŶĞĐƟŽŶƐĂƐƚŚŝƐĐŽƵůĚĐƌĂĐŬƚŚĞǀĂůǀĞďŽĚLJ
ǀĂůǀĞǁŝƚŚĂĐƌĂĐŬĞĚǀĂůǀĞďŽĚLJǁŝůůŶŽƚďĞǁĂƌƌĂŶƟĞĚ
FIGURE 1 FIGURE 2
INSTALLATION INSTRUCTIONS (Cont’d)
PILOT TUBING
ϭDĂŬĞƐƵƌĞƚƵďŝŶŐŝƐĨƌĞĞŽĨďƵƌƌƐĂŶĚĚŝƌƚ
ϮtĞƐƚƌŽŶŐůLJƌĞĐŽŵŵĞŶĚƚŚĂƚƚŚĞƉŝůŽƚŽƌŝĮĐĞďĞĐŚĞĐŬĞĚĂŶĚ
ĐůĞĂŶĞĚŝĨŶĞĐĞƐƐĂƌLJĂƚƚŚŝƐƟŵĞ
ϯŽŶŶĞĐƚƉŝůŽƚƚƵďŝŶŐŝŶƚŽƚŚĞĐŽŶƚƌŽůƵƐŝŶŐĮƫŶŐƉƌŽǀŝĚĞĚĂŶĚ
ƟŐŚƚĞŶĨŽƌĂŐĂƐͲƟŐŚƚƐĞĂů
PRESSURE REGULATOR VENT
dŚĞϳϮϬ^ĞƌŝĞƐǁŚĞŶĞƋƵŝƉƉĞĚǁŝƚŚĂƉƌĞƐƐƵƌĞƌĞŐƵůĂƚŽƌŚĂƐĂƐƚĂŶĚĂƌĚ
ĞƋƵŝƉŵĞŶƚďƵŝůƚͲŝŶsĞŶƚ>ŝŵŝƚĞƌdŚĞƌĞŐƵůĂƚŽƌǀĞŶƚŝƐƚĂƉƉĞĚϭϴ
ƚƵďŝŶŐŝĨǀĞŶƚƚƵďŝŶŐŝƐƌĞƋƵŝƌĞĚCAUTION:/ĨďůĞĞĚƚƵďŝŶŐŝƐƵƐĞĚĚŽ
ŶŽƚĂůůŽǁŵĂŝŶďƵƌŶĞƌŽƌƉŝůŽƚŇĂŵĞŝŵƉŝŶŐĞŵĞŶƚŽŶƚŚĞƚƵďŝŶŐĂƐ
ƚŚŝƐǁŝůůĞǀĞŶƚƵĂůůLJĐĂƵƐĞĐůŽŐŐŝŶŐŽĨƚŚĞƚƵďŝŶŐĂŶĚŝŵƉƌŽƉĞƌƌĞŐƵůĂƚŽƌ
ŽƉĞƌĂƟŽŶ/ĨďůĞĞĚƚƵďŝŶŐŝƐŶŽƚƵƐĞĚƚŚĞƌĞŐƵůĂƚŽƌǀĞŶƚŵƵƐƚďĞ
ƉƌŽƉĞƌůLJƐŚŝĞůĚĞĚĨƌŽŵŵŽŝƐƚƵƌĞ
THERMOCOUPLE CONNECTION
dŚĞƚŚĞƌŵŽĐŽƵƉůĞŶƵƚƐŚŽƵůĚďĞƐƚĂƌƚĞĚĂŶĚƚƵƌŶĞĚĂůůƚŚĞǁĂLJŝŶďLJ
ŚĂŶĚŶĂĚĚŝƟŽŶĂůƋƵĂƌƚĞƌƚƵƌŶǁŝƚŚĂƐŵĂůů;ϰͿǁƌĞŶĐŚǁŝůůƚŚĞŶďĞ
ƐƵĸĐŝĞŶƚƚŽƐĞƚƚŚĞůŽĐŬǁĂƐŚĞƌCAUTION:KǀĞƌƟŐŚƚĞŶŝŶŐŵĂLJĐĂƵƐĞ
ĚĂŵĂŐĞƚŽƚŚĞƚŚĞƌŵŽĐŽƵƉůĞŽƌŵĂŐŶĞƚĂŶĚŝƐƵŶŶĞĐĞƐƐĂƌLJ
ZĞƉůĂĐĞŵĞŶƚŵĂŐŶĞƚƐĂƌĞŶŽƚĂǀĂŝůĂďůĞ/ĨŵĂŐŶĞƚŝƐďĂĚƌĞƉůĂĐĞ
ƚŚĞǀĂůǀĞ
WIRING
DO NOTƐŚŽƌƚŐĂƐǀĂůǀĞƚĞƌŵŝŶĂůƐdŚŝƐǁŝůůĚĂŵĂŐĞǁĂůůƚŚĞƌŵŽƐƚĂƚ
ĂŶĚǀŽŝĚǁĂƌƌĂŶƚLJ
ϭŚĞĐŬƚŚĞƐLJƐƚĞŵĨŽƌƚŚĞƉƌŽƉĞƌƚƌĂŶƐĨŽƌŵĞƌďLJĐŽŵƉĂƌŝŶŐƚŚĞ
sƌĂƟŶŐƐŽĨƚŚĞƚƌĂŶƐĨŽƌŵĞƌĂŶĚƚŚĞƐLJƐƚĞŵdŚĞƐLJƐƚĞŵƌĂƟŶŐ
ŝƐĚĞƚĞƌŵŝŶĞĚďLJŵƵůƟƉůLJŝŶŐƚŚĞǀŽůƚĂŐĞĚƌĂǁƟŵĞƐƚŚĞĂŵƉ
ĚƌĂǁEŽƌŵĂůůLJϮϬsƚƌĂŶƐĨŽƌŵĞƌƐĂƌĞƐƵĸĐŝĞŶƚĨŽƌŚĞĂƟŶŐŽŶůLJ
ĂƉƉůŝĐĂƟŽŶƐĂŶĚϰϬsĨŽƌŚĞĂƟŶŐĐŽŽůŝŶŐĂƉƉůŝĐĂƟŽŶƐ
ϮŽŶŶĞĐƚůĞĂĚĨƌŽŵƚƌĂŶƐĨŽƌŵĞƌƚŽηϭƚĞƌŵŝŶĂůŽŶƚŚĞŐĂƐǀĂůǀĞ
;ƐĞĞĚƌĂǁŝŶŐͿ
ϯŽŶŶĞĐƚůĞĂĚƚŽǁĂůůƚŚĞƌŵŽƐƚĂƚƚŽηϮƚĞƌŵŝŶĂůŽŶŐĂƐǀĂůǀĞ
;ƐĞĞĚƌĂǁŝŶŐͿ
LEAK TEST
>ĞĂŬƚĞƐƚǁŝƚŚĂƐŽĂƉƐŽůƵƟŽŶĂŌĞƌŝŶƐƚĂůůĂƟŽŶǁŝƚŚŵĂŝŶďƵƌŶĞƌŽŶ
ŽĂƚƉŝƉĞĂŶĚƚƵďŝŶŐũŽŝŶƚƐŐĂƐŬĞƚĞƚĐǁŝƚŚƐŽĂƉƐŽůƵƟŽŶƵďďůĞƐ
ŝŶĚŝĐĂƚĞůĞĂŬƐ
CAUTION
ϭdŚŝƐĂƉƉůŝĂŶĐĞŚĂƐĂƉŝůŽƚďƵƌŶĞƌǁŚŝĐŚŵƵƐƚďĞůŝƚďLJŚĂŶĚ/Ĩ
ƚŚĞƉŝůŽƚŇĂŵĞŚĂƐŐŽŶĞŽƵƚĨŽůůŽǁƚŚĞƐĞŝŶƐƚƌƵĐƟŽŶƐĞdžĂĐƚůLJ
WARNING:/ĨLJŽƵĚŽŶŽƚĨŽůůŽǁƚŚĞƐĞŝŶƐƚƌƵĐƟŽŶƐĞdžĂĐƚůLJĂĮƌĞŽƌ
ĞdžƉůŽƐŝŽŶŵĂLJƌĞƐƵůƚŝŶƉƌŽƉĞƌƚLJĚĂŵĂŐĞƉĞƌƐŽŶĂůŝŶũƵƌLJŽƌůŽƐƐ
ŽĨůŝĨĞ
Ϯ^ŵĞůůĂůůĂƌŽƵŶĚƚŚĞĂƉƉůŝĂŶĐĞĂƌĞĂĨŽƌŐĂƐ/ĨƚŚĞĂƉƉůŝĂŶĐĞ
ƵƐĞƐ>W;ďŽƩůĞĚͿŐĂƐďĞƐƵƌĞƚŽƐŵĞůůŶĞdžƚƚŽƚŚĞŇŽŽƌďĞĐĂƵƐĞ
>WŐĂƐŝƐŚĞĂǀŝĞƌƚŚĂŶĂŝƌ
WARNING:/ĨLJŽƵƐŵĞůůŐĂƐŝŵŵĞĚŝĂƚĞůLJƐŚƵƚŽīƚŚĞŵĂŶƵĂů
ǀĂůǀĞŝŶƚŚĞŐĂƐƉŝƉŝŶŐƚŽƚŚĞĂƉƉůŝĂŶĐĞŽŶƚƚŽƵĐŚĂŶLJĞůĞĐƚƌŝĐĂů
ƐǁŝƚĐŚŽƌƵƐĞƚŚĞƉŚŽŶĞ>ĞĂǀĞƚŚĞďƵŝůĚŝŶŐĂŶĚĐĂůůLJŽƵƌŐĂƐ
ƐƵƉƉůŝĞƌ/ĨŚĞĐĂŶŶŽƚďĞƌĞĂĐŚĞĚĐĂůůƚŚĞĮƌĞĚĞƉĂƌƚŵĞŶƚ
ϯWARNING:ŽŶŽƚĨŽƌĐĞƚŚĞŐĂƐĐŽŶƚƌŽůŬŶŽďŽŶƚŚĞĂƉƉůŝĂŶĐĞ
hƐĞŽŶůLJLJŽƵƌŚĂŶĚƚŽƉƵƐŚĚŽǁŶĂŶĚŽƌƚŽƚƵƌŶƚŚĞŐĂƐĐŽŶƚƌŽů
ŬŶŽďEĞǀĞƌƵƐĞĂŶLJƚŽŽůƐ/ĨƚŚĞŐĂƐĐŽŶƚƌŽůŬŶŽďǁŝůůŶŽƚ
ŽƉĞƌĂƚĞďLJŚĂŶĚƚŚĞĐŽŶƚƌŽůƐŚŽƵůĚďĞƌĞƉůĂĐĞĚďLJĂƋƵĂůŝĮĞĚ
ƐĞƌǀŝĐĞƚĞĐŚŶŝĐŝĂŶ&ŽƌĐĞŽƌĂƩĞŵƉƚĞĚƌĞƉĂŝƌŵĂLJƌĞƐƵůƚŝŶĮƌĞ
ŽƌĞdžƉůŽƐŝŽŶ
ϰWARNING:dŚĞŐĂƐĐŽŶƚƌŽůŵƵƐƚďĞƌĞƉůĂĐĞĚŝĨŝƚŚĂƐďĞĞŶ
ĞdžƉŽƐĞĚƚŽǁĂƚĞƌ
OPERATING INSTRUCTIONS
ϭdƵƌŶǁĂůůƚŚĞƌŵŽƐƚĂƚƚŽŝƚƐůŽǁĞƐƚƐĞƫŶŐZĞŵŽǀĞďƵƌŶĞƌĂĐĐĞƐƐ
ƉĂŶĞů;ƐͿ
^ĞůĞĐƚŽƌĂƌŵŵƵƐƚŽŶůLJďĞŽƉĞƌĂƚĞĚďLJŚĂŶĚ;ƐĞĞďĞůŽǁͿDO NOT
ƵƐĞƉůŝĞƌƐǁƌĞŶĐŚĞƐŽƌŽƚŚĞƌƚŽŽůƐƚŽŽƉĞƌĂƚĞƚŚĞĂƌŵdŚĞƐĞůĞĐƚŽƌ
ĂƌŵĐĂŶŶŽƚďĞŵŽǀĞĚŝŶƚŽƚŚĞŽīƉŽƐŝƟŽŶǁŝƚŚŽƵƚĮƌƐƚĚĞƉƌĞƐƐŝŶŐ
ƚŚĞůĞǀĞƌŝŶƚŚĞŽŶƉŽƐŝƟŽŶ
ϮDŽǀĞƐĞůĞĐƚŽƌĂƌŵƚŽƚŚĞŽīƉŽƐŝƟŽŶ;^ĞĞĮŐƵƌĞϭͿ
ϯWARNING:tĂŝƚĂƚůĞĂƐƚϱŵŝŶƵƚĞƐƚŽĂůůŽǁĂŶLJŐĂƐŝŶƚŚĞ
ĐŽŵďƵƐƟŽŶĐŚĂŵďĞƌƚŽǀĞŶƚ/ĨLJŽƵƚŚĞŶƐŵĞůůŐĂƐŝŶƚŚĞĂƉƉůŝĂŶĐĞ
ĂƌĞĂŽƌŶĞĂƌƚŚĞŇŽŽƌ^dKWĂŶĚĨŽůůŽǁǁĂƌŶŝŶŐŝŶƐƚƌƵĐƟŽŶƐ&ĂŝůƵƌĞ
ƚŽĚŽƐŽŵĂLJƌĞƐƵůƚŝŶĮƌĞŽƌĞdžƉůŽƐŝŽŶ
ϰ/ĨLJŽƵĚŽŶƚƐŵĞůůŐĂƐŚŽůĚŵĂƚĐŚĂƚƉŝůŽƚďƵƌŶĞƌWARNING:/Ĩ
ƉŝůŽƚůŝŐŚƚƐǁŝƚŚŽƵƚŵŽǀŝŶŐƐĞůĞĐƚŽƌĂƌŵƚŽƚŚĞƐĞƚƉŽƐŝƟŽŶ
ƌĞƉůĂĐĞĐŽŶƚƌŽůWƵƐŚƐĞůĞĐƚŽƌĂƌŵƚŽƚŚĞƐĞƚƉŽƐŝƟŽŶĂŶĚŚŽůĚ
ŝƚǁŚŝůĞůŝŐŚƟŶŐƚŚĞƉŝůŽƚďƵƌŶĞƌ;^ĞĞĮŐƵƌĞϮͿůůŽǁƉŝůŽƚƚŽďƵƌŶ
ĂƉƉƌŽdžŝŵĂƚĞůLJϭŵŝŶƵƚĞ/ĨƉŝůŽƚĚŽĞƐŶŽƚƌĞŵĂŝŶůŝƚĂŌĞƌƌĞƚƵƌŶŝŶŐ
ƐĞůĞĐƚŽƌĂƌŵƚŽƉŝůŽƚƉŽƐŝƟŽŶ;ƐĞĞĮŐƵƌĞϯͿƌĞƉĞĂƚŽƉĞƌĂƟŽŶ
ĂůůŽǁŝŶŐůŽŶŐĞƌƉĞƌŝŽĚďĞĨŽƌĞƌĞůĞĂƐŝŶŐƚŚĞƐĞůĞĐƚŽƌĂƌŵ;ĚũƵƐƚ
ƉŝůŽƚŝĨŶĞĐĞƐƐĂƌLJĂƐŶŽƚĞĚƵŶĚĞƌWŝůŽƚƵƌŶĞƌĚũƵƐƚŵĞŶƚͿdŚĞ
ƚŚĞƌŵŽĐŽƵƉůĞŵĂLJĂůƐŽďĞĚĞĨĞĐƟǀĞĂŶĚƐŚŽƵůĚďĞĐŚĞĐŬĞĚ;ƐĞĞ
^ĞƌǀŝĐĞ/ŶƐƚƌƵĐƟŽŶƐͿ
ϱDŽǀĞƐĞůĞĐƚŽƌĂƌŵƚŽƚŚĞŽŶƉŽƐŝƟŽŶ;ƐĞĞĮŐƵƌĞϰͿĂŶĚƐĞƚƌŽŽŵ
ƚŚĞƌŵŽƐƚĂƚƚŽĚĞƐŝƌĞĚƚĞŵƉĞƌĂƚƵƌĞůůŽǁďƵƌŶĞƌƚŽĐLJĐůĞŽŶĂŶĚŽī
ϲZĞƉůĂĐĞďƵƌŶĞƌĂĐĐĞƐƐƉĂŶĞů;ƐͿ
2FIGURE 3 FIGURE 4
SERVICE INSTRUCTIONS
CAUTION:/ĨĐŽŶƚƌŽůŚĂƐďĞĞŶĞdžƉŽƐĞĚƚŽǁĂƚĞƌŝŶĂŶLJǁĂLJŝƚŵƵƐƚďĞ
ƌĞƉůĂĐĞĚ/ĨŐĂƐǀĂůǀĞĨĂŝůƐƚŽƐŚƵƚŽīĚŽŶŽƚƚƵƌŶŽīĞůĞĐƚƌŝĐĂůƉŽǁĞƌ
dƵƌŶŽīŐĂƐƐƵƉƉůLJĂůůŽǁŝŶŐĨĂŶŽƌĐŝƌĐƵůĂƟŶŐƉƵŵƉ;ŝĨƐŽĞƋƵŝƉƉĞĚͿƚŽ
ĐŽŶƟŶƵĞƌƵŶŶŝŶŐƵŶƟůƐLJƐƚĞŵŚĂƐĐŽŽůĞĚZĞƉůĂĐĞĐŽŶƚƌŽů
AUTOMATIC PILOT SYSTEM
dŽƉĞƌĨŽƌŵƚŚĞĨŽůůŽǁŝŶŐƚĞƐƚǁĞƌĞĐŽŵŵĞŶĚƵƐŝŶŐĂƌĞůŝĂďůĞĚŝŐŝƚĂů
ŵĞƚĞƌdŚĞƌĞĂƌĞƚŚƌĞĞŵĂũŽƌĐĂƵƐĞƐŽĨƉŝůŽƚŽƵƚĂŐĞŝŶƚŚĞĂƵƚŽŵĂƟĐ
ƉŝůŽƚƐLJƐƚĞŵƐ
ϭ/ŵƉƌŽƉĞƌƉŝůŽƚŽƉĞƌĂƟŽŶ
Ϯ>ŽǁŽƵƚƉƵƚƚŚĞƌŵŽĐŽƵƉůĞŽƌƚŚĞƌŵŽƉŝůĞ
ϯ/ŶŽƉĞƌĂƟǀĞĂƵƚŽŵĂƟĐƉŝůŽƚŵĂŐŶĞƚ
dĞƐƚƉƌŽĐĞĚƵƌĞƐĂŶĚƐƚĞƉƐƚŽĨŽůůŽǁŝŶĐŚĞĐŬŝŶŐĞĂĐŚĐŽŵƉŽŶĞŶƚŽĨƚŚĞ
ĂƵƚŽŵĂƟĐƉŝůŽƚƐLJƐƚĞŵƐĂƌĞůŝƐƚĞĚďĞůŽǁ
Thermocouple Check
ĐůŽƐĞĚĐŝƌĐƵŝƚŵŝůůŝǀŽůƚĐŚĞĐŬŝƐƵƐĞĚƚŽĐŚĞĐŬƚŚĞƌŵŽĐŽƵƉůĞŽƵƚƉƵƚ
dŚŝƐĐŚĞĐŬŝƐƉĞƌĨŽƌŵĞĚĂƐĨŽůůŽǁƐ
ϭŚĞĐŬĨŽƌƉƌŽƉĞƌƉŝůŽƚŽƉĞƌĂƟŽŶ
ϮhƐĞĂŵŝůůŝǀŽůƚŵĞƚĞƌǁŝƚŚĂϬͲϱϬŵŝůůŝǀŽůƚƌĂŶŐĞ
ϯŽŶŶĞĐƚĚĂƉƚŽƌϭϬͲϬϯϴĂŶĚŵŝůůŝǀŽůƚŵĞƚĞƌůĞĂĚƐĂƐƐŚŽǁŶŝŶĮŐƵƌĞ
ďĞůŽǁĞƐƵƌĞĐŽŶŶĞĐƟŽŶƐĂƌĞƐŶƵŐ
ϰ&ŽůůŽǁƐƚĂŶĚĂƌĚůŝŐŚƟŶŐƉƌŽĐĞĚƵƌĞ
ϱŚĞĐŬĐůŽƐĞĚĐŝƌĐƵŝƚƚŚĞƌŵŽĐŽƵƉůĞŽƵƚƉƵƚ/ĨůĞƐƐƚŚĂŶĞŝŐŚƚ
ŵŝůůŝǀŽůƚƐƌĞƉůĂĐĞǁŝƚŚZŽďĞƌƚƐŚĂǁϭϵϳϬŽƌϭϵϴϬƐĞƌŝĞƐ
ƚŚĞƌŵŽĐŽƵƉůĞ
ϲZĞƉĞĂƚƐƚĂŶĚĂƌĚůŝŐŚƟŶŐƉƌŽĐĞĚƵƌĞĂŌĞƌƚŚĞƌŵŽĐŽƵƉůĞƌĞƉůĂĐĞŵĞŶƚ
ƵƚŽŵĂƟĐWŝůŽƚDĂŐŶĞƚŚĞĐŬ;dŚĞƌŵŽĐŽƵƉůĞdLJƉĞͿ
/ĨƚŚĞĐůŽƐĞĚĐŝƌĐƵŝƚĐŚĞĐŬƐŚŽǁƐƚŚĞƚŚĞƌŵŽĐŽƵƉůĞŽƵƚƉƵƚŝƐŐƌĞĂƚĞƌ
than
ĞŝŐŚƚŵŝůůŝǀŽůƚƐĂŶĚƉŝůŽƚǁŝůůŶŽƚƌĞŵĂŝŶůŝƚǁŚĞŶƐĞůĞĐƚŽƌĂƌŵŝƐ
released
ĂŌĞƌŝŶŝƟĂůůŝŐŚƟŶŐƉƌŽĐĞĚƵƌĞĐŚĞĐŬŽƉĞƌĂƟŽŶŽĨŵĂŐŶĞƚĂƐ
ĨŽůůŽǁƐ
ϭĚĂƉƚŽƌϭϬͲϬϯϴƐŚŽƵůĚƌĞŵĂŝŶĐŽŶŶĞĐƚĞĚŝŶƐLJƐƚĞŵĂƐƐŚŽǁŶŝŶ
ĮŐƵƌĞĂďŽǀĞ
Ϯ&ŽůůŽǁƐƚĂŶĚĂƌĚůŝŐŚƟŶŐƉƌŽĐĞĚƵƌĞĂŶĚĐŽŶƟŶƵĞŚŽůĚŝŶŐƐĞůĞĐƚŽƌ
ĂƌŵŝŶƚŚĞƐĞƚƉŽƐŝƟŽŶ
ϯůůŽǁƚŚĞƌŵŽĐŽƵƉůĞŽƵƚƉƵƚƚŽƐƚĂďŝůŝnjĞĂŶĚŶŽƚĞŵĞƚĞƌƌĞĂĚŝŶŐ
ϰdžƟŶŐƵŝƐŚƉŝůŽƚďLJŵŽǀŝŶŐƐĞůĞĐƚŽƌĂƌŵƚŽŽīƉŽƐŝƟŽŶ
ϱŐŽŽĚŵĂŐŶĞƚƐŚŽƵůĚƌĞŵĂŝŶůŽĐŬĞĚƵƉĨŽƌĂĚƌŽƉŽĨĮǀĞŵŝůůŝǀŽůƚƐ
ŽƌŵŽƌĞĨƌŽŵƚŚĞŽƌŝŐŝŶĂůƐƚĂďŝůŝnjĞĚƌĞĂĚŝŶŐďĞĨŽƌĞƌĞůĞĂƐŝŶŐ
ϲ/ĨŵĂŐŶĞƚĚŽĞƐŶŽƚŽƉĞƌĂƚĞƉƌŽƉĞƌůLJƌĞƉůĂĐĞƚŚĞǀĂůǀĞ
PILOT BURNER ADJUSTMENT
ϭĚũƵƐƚƉŝůŽƚŬĞLJƚŽƉƌŽǀŝĚĞƉƌŽƉĞƌůLJƐŝnjĞĚŇĂŵĞŽŶƚŚĞ
ƚŚĞƌŵŽĐŽƵƉůĞdŚĞŇĂŵĞƐŚŽƵůĚĐŽǀĞƌƚŚĞƵƉƉĞƌϯϴŽĨƚŚĞƟƉ
3
PRESSURE REGULATOR ADJUSTMENTS
ĚũƵƐƚŵĞŶƚŽĨƚŚĞƉƌĞƐƐƵƌĞƌĞŐƵůĂƚŽƌŝƐŶŽƚŶŽƌŵĂůůLJŶĞĐĞƐƐĂƌLJ
ƐŝŶĐĞŝƚŝƐƉƌĞƐĞƚĂƚƚŚĞĨĂĐƚŽƌLJ,ŽǁĞǀĞƌĮĞůĚĂĚũƵƐƚŵĞŶƚŵĂLJďĞ
ĂĐĐŽŵƉůŝƐŚĞĚĂƐĨŽůůŽǁƐ
NOTE:DĂŶŽŵĞƚĞƌĂƩĂĐŚŵĞŶƚŵĂLJďĞĂĐĐŽŵƉůŝƐŚĞĚĂƚƉƌĞƐƐƵƌĞƚĂƉ
ƉůƵŐĂďŽǀĞĐŽŶƚƌŽůŽƵƚůĞƚĂƐƐŚŽǁŶŝŶĮŐƵƌĞďĞůŽǁ/ĨƵƐŝŶŐŝŶůĞƚ
ƉƌĞƐƐƵƌĞƚĂƉƚŽŵĞĂƐƵƌĞŝŶĐŽŵŝŶŐƉƌĞƐƐƵƌĞƐĞĞĚƌĂǁŝŶŐŽŶĮƌƐƚƉĂŐĞ
ϭDĂŶŽŵĞƚĞƌŽƌŐĂƵŐĞĂƩĂĐŚŵĞŶƚŵĂLJďĞĂĐĐŽŵƉůŝƐŚĞĚĂƚƉƌĞƐƐƵƌĞ
ƚĂƉƉůƵŐ
ϮZĞŵŽǀĞƌĞŐƵůĂƚŽƌĂĚũƵƐƚŵĞŶƚƐĐƌĞǁĐĂƉ;dŽƉŽĨĐŽŶƚƌŽůͿ
ϯtŝƚŚƐŵĂůůƐĐƌĞǁĚƌŝǀĞƌƌŽƚĂƚĞĂĚũƵƐƚŵĞŶƚƐĐƌĞǁĐůŽĐŬǁŝƐĞƚŽ
ŝŶĐƌĞĂƐĞŽƌĐŽƵŶƚĞƌĐůŽĐŬǁŝƐĞƚŽĚĞĐƌĞĂƐĞƉƌĞƐƐƵƌĞƚŽĐŽŵƉůLJǁŝƚŚ
ŵĂŶƵĨĂĐƚƵƌĞƌƐƐƉĞĐŝĮĐĂƟŽŶƐ
ϰZĞƉůĂĐĞƌĞŐƵůĂƚŽƌĂĚũƵƐƚŵĞŶƚƐĐƌĞǁĐĂƉ
REGULATOR CONVERSION
CAUTION:DĂŝŶďƵƌŶĞƌĂŶĚƉŝůŽƚŽƌŝĮĐĞƐŵƵƐƚďĞĐŚĂŶŐĞĚǁŚĞŶ
ƌĞŐƵůĂƚŽƌŝƐĐŽŶǀĞƌƚĞĚĨƌŽŵŽŶĞƚLJƉĞŐĂƐƚŽĂŶŽƚŚĞƌ
dŚĞϳϮϬ^ĞƌŝĞƐǀĂůǀĞƐĐĂŶďĞĐŽŶǀĞƌƚĞĚĨƌŽŵŶĂƚƵƌĂůƚŽ>WďLJŝŶƐƚĂůůŝŶŐ
ƚŚĞĞŶĐůŽƐĞĚĐŽŶǀĞƌƐŝŽŶŬŝƚ
ϭdƵƌŶŽīŐĂƐĂŶĚĞůĞĐƚƌŝĐŝƚLJƚŽĂƉƉůŝĂŶĐĞ
ϮZĞŵŽǀĞƐůŽƩĞĚĐĂƉ;ͿĂĚũƵƐƟŶŐƐĐƌĞǁ;ͿĂŶĚŶĂƚƵƌĂůŐĂƐƐƉƌŝŶŐͲ
ŶŽƚĐŽůŽƌĐŽĚĞĚͲ;ͿĨƌŽŵĐŽŶƚƌŽů
ϯ/ŶƐƚĂůůŶĞǁ>WƐƉƌŝŶŐͲĐŽůŽƌĐŽĚĞĚǁŝƚŚĂďůĂĐŬƐƚƌŝƉ
ϰ/ŶƐƚĂůůŶĞǁĂĚũƵƐƟŶŐƐĐƌĞǁ;Ϳ
ϱƩĂĐŚŵĂŶŽŵĞƚĞƌŽƌƉƌĞƐƐƵƌĞŐĂƵŐĞĂƚƚŚĞŽƵƚůĞƚƉƌĞƐƐƵƌĞƚĂƉ
ϲdƵƌŶŐĂƐĂŶĚĞůĞĐƚƌŝĐŝƚLJŽŶ
ϳdƵƌŶƌŽŽŵƚŚĞƌŵŽƐƚĂƚƚŽĐĂůůĨŽƌŚĞĂƚ
ϴ
tŝƚŚďƵƌŶĞƌŽŶĂĚũƵƐƚƐĐƌĞǁ;ͿƚŽƐƵƉƉůLJ>WŐĂƐƚŽƉƌĞƐƐƵƌĞĂƐ
ƌĞĐŽŵŵĞŶĚĞĚ
ďLJƚŚĞĂƉƉůŝĂŶĐĞŵĂŶƵĨĂĐƚƵƌĞƌ
WARNING
^ĞƌǀŝĐŝŶŐŽĨŐĂƐĐŽŶƚƌŽůƐĂƉƉůŝĂŶĐĞƐĂŶĚƐLJƐƚĞŵƐŵƵƐƚ
ďĞƉĞƌĨŽƌŵĞĚďLJƋƵĂůŝĮĞĚƐĞƌǀŝĐĞƉĞƌƐŽŶŶĞůŽŶůLJ
ƵƐƚŽŵĞƌ^ĞƌǀŝĐĞdĞůĞƉŚŽŶĞϭϴϬϬϯϬϰϲϱϲϯ
ƵƐƚŽŵĞƌ^ĞƌǀŝĐĞ&ĂĐƐŝŵŝůĞϭϴϬϬϰϮϲϬϴϬϰ
,sƵƐƚŽŵĞƌ^ĞƌǀŝĐĞΛƌŽďĞƌƚƐŚĂǁĐŽŵ
ZŽďĞƌƚƐŚĂǁΠZĂŶĐŽΠWĂƌĂŐŽŶΠĂŶĚhŶŝͲ>ŝŶĞΠĂƌĞ
ƚƌĂĚĞŵĂƌŬƐŽĨZŽďĞƌƚƐŚĂǁŝƚƐƐƵďƐŝĚŝĂƌŝĞƐĂŶĚŽƌ
ĂĨĨŝůŝĂƚĞĚĐŽŵƉĂŶŝĞƐůůŽƚŚĞƌďƌĂŶĚƐŵĞŶƚŝŽŶĞĚ
ŵĂLJďĞƚŚĞƚƌĂĚĞŵĂƌŬƐŽĨƚŚĞŝƌƌĞƐƉĞĐƚŝǀĞŽǁŶĞƌƐ
&ŽƌdĞĐŚŶŝĐĂů^ĞƌǀŝĐĞ
dĞůĞƉŚŽŶĞϭϴϬϬϰϰϱϴϮϵϵ
&ĂĐƐŝŵŝůĞϭϲϯϬϮϲϬϳϮϵϰ
dĞĐŚŶŝĐĂů^ĞƌǀŝĐĞΛƌŽďĞƌƚƐŚĂǁĐŽŵ
ǁǁǁƵŶŝͲůŝŶĞĐŽŵ
ǁǁǁƌŽďĞƌƚƐŚĂǁĐŽŵ
ΞϮϬϭϰZŽďĞƌƚƐŚĂǁ
ϬϴϭϰʹϭͲϰϴϵZĞǀ
SERVICE INSTRUCTIONS (Cont’d)
ϵ/ĨĂĚũƵƐƟŶŐƐĐƌĞǁ;ͿƌĞĂĐŚĞƐŝƚƐŵĂdžŝŵƵŵĚĞƉƚŚ;ďŽƩŽŵƐŽƵƚͿ
ďĞĨŽƌĞƌĞĐŽŵŵĞŶĚĞĚƉƌĞƐƐƵƌĞƐĞƫŶŐŝƐƌĞĂĐŚĞĚƚƵƌŶƐĐƌĞǁ
ĐŽƵŶƚĞƌĐůŽĐŬǁŝƐĞƵŶƟůƉƌĞƐƐƵƌĞĚƌŽƉƐƐůŝŐŚƚůLJ;ĂƉƉƌŽdžŝŵĂƚĞůLJϬϭ
tͿWARNING:ŽŶŽƚƐƚƌĞƚĐŚŽƌĂůƚĞƌƐƉƌŝŶŐ
ϭϬdƵƌŶŽīŐĂƐĂŶĚĞůĞĐƚƌŝĐŝƚLJƚŽĂƉƉůŝĂŶĐĞ
ϭϭZĞŵŽǀĞŵĂŶŽŵĞƚĞƌŽƌƉƌĞƐƐƵƌĞŐĂƵŐĞĂŶĚƌĞŝŶƐƚĂůůĮƫŶŐ
ϭϮ/ŶƐƚĂůůŶĞǁƌĞĚƐůŽƩĞĚĐĂƉŝŶƉůĂĐĞŽĨ;Ϳ
ϭϯdƵƌŶŐĂƐĂŶĚĞůĞĐƚƌŝĐŝƚLJŽŶ
ϭϰtŝƚŚďƵƌŶĞƌŽƉĞƌĂƟŶŐŝŵŵĞĚŝĂƚĞůLJĐŚĞĐŬĂůůĮƫŶŐƐĨŽƌůĞĂŬƐǁŝƚŚ
ƐŽĂƉƐŽůƵƟŽŶƵďďůĞƐŝŶĚŝĐĂƚĞůĞĂŬƐƚŚĂƚŵƵƐƚďĞĐŽƌƌĞĐƚĞĚ
ϭϱƩĂĐŚůĂďĞůƚŽƐŚŽǁĐŽŶƚƌŽůŚĂƐďĞĞŶĐŽŶǀĞƌƚĞĚƚŽ>W
ϭϲ^ĞƚƌŽŽŵƚŚĞƌŵŽƐƚĂƚƚŽĚĞƐŝƌĞĚƚĞŵƉĞƌĂƚƵƌĞ
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