Takagi T-D2U - Manual (Page 30)

ϯϬ
WĂŐĞ
APPLICATIONS
Ͳ^ƉĂĐĞͲ,ĞĂƟŶŐƉƉůŝĐĂƟŽŶƐͲ
ͲZĞĐŝƌĐƵůĂƟŽŶͲ
*The recirculation pump is to be controlled by:
-Dual-set aquastat (recommended w/timer)
ΎdŚĞƌĞĐŝƌĐƵůĂƚŝŽŶƉƵŵƉŝƐƚŽƉƌŽǀŝĚĞŶŽůĞƐƐƚŚĂŶϮ'WD;ϳ͘ϱ>ͬŵŝŶͿĂŶĚŶŽŵŽƌĞƚŚĂŶϰ'WD;ϭϱ>ͬŵŝŶͿƚŚƌŽƵŐŚ
each activated unit in the system.
ͻ In order to purge air in water pipes within a closed-loop system, an air vent
and air separator should be installed in the system. Required circulation
flow rates are labeled next to each application diagram. These flow rate
requirements must be followed͘
ͻ dŽdžŝĐĐŚĞŵŝĐĂůƐƵƐĞĚŝŶďŽŝůĞƌƚƌĞĂƚŵĞŶƚƐƐƵĐŚĂƐĂůĐŽŚŽů͕ŐůLJĐĞƌŽůĂŶĚŐůLJĐŽů
ŐƌŽƵƉƐŵƵƐƚŶŽƚďĞŝŶƚƌŽĚƵĐĞĚŝŶƚŽƚŚĞƐLJƐƚĞŵŝĨƚŚĞƐLJƐƚĞŵŝŶĐŽƌƉŽƌĂƚĞƐĂŶ
ŽƉĞŶͲůŽŽƉƉŽƚĂďůĞǁĂƚĞƌƐLJƐƚĞŵ͘
ͻ dŚĞǁĂƚĞƌŚĞĂƚĞƌĐĂŶďĞƵƐĞĚƚŽƐƵƉƉůLJƉŽƚĂďůĞǁĂƚĞƌĂŶĚƐƉĂĐĞŚĞĂƚŝŶŐĂŶĚ
ƐŚĂůů ŶŽƚ ďĞ ĐŽŶŶĞĐƚĞĚ ƚŽ ĂŶLJ ŚĞĂƚŝŶŐ ƐLJƐƚĞŵ Žƌ ĐŽŵƉŽŶĞŶƚ;ƐͿ ƉƌĞǀŝŽƵƐůLJ
ƵƐĞĚǁŝƚŚŶŽŶͲƉŽƚĂďůĞǁĂƚĞƌǁŚĞƌĞĂŶLJĐŚĞŵŝĐĂůƐǁĞƌĞĂĚĚĞĚƚŽƚŚĞǁĂƚĞƌ
ŚĞĂƚŝŶŐĂƉƉůŝĂŶĐĞƐ͘
ͻ tŚĞŶ ƚŚĞ ƐLJƐƚĞŵ ƌĞƋƵŝƌĞƐ ǁĂƚĞƌ ĨŽƌ ƐƉĂĐĞ ŚĞĂƚŝŶŐ Ăƚ ƚĞŵƉĞƌĂƚƵƌĞƐ ŚŝŐŚĞƌ
ƚŚĂŶƌĞƋƵŝƌĞĚĨŽƌŽƚŚĞƌƵƐĞƐ͕ĂŵĞĂŶƐƐƵĐŚĂƐĂŵŝdžŝŶŐǀĂůǀĞƐŚĂůůďĞŝŶƐƚĂůůĞĚ
ƚŽ ƚĞŵƉĞƌ ƚŚĞ ǁĂƚĞƌ ĨŽƌ ƚŚŽƐĞ ŽƚŚĞƌ ƵƐĞƐ ŝŶ ŽƌĚĞƌ ƚŽ ƌĞĚƵĐĞ ƐĐĂůĚ ŚĂnjĂƌĚ
ƉŽƚĞŶƚŝĂů͘
ͻ tĂƚĞƌ ƚĞŵƉĞƌĂƚƵƌĞ ŽǀĞƌ ϭϮϱ Σ& ;ϱϮ ΣͿ ĐĂŶ ĐĂƵƐĞ ƐĞǀĞƌĞ ďƵƌŶƐ ŝŶƐƚĂŶƚůLJ Žƌ
ĚĞĂƚŚĨƌŽŵƐĐĂůĚŝŶŐ͘
ͻ ŚĞŵŝĐĂůƐƐƵĐŚĂƐĚŝůƵƚĞĚ'ůLJĐŽůĐĂŶďĞƵƐĞĚĨŽƌƌĂĚŝĂŶƚĨůŽŽƌ͕,LJĚƌŽͬĨĂŶĐŽŝů
Ăŝƌ Žƌ ĂƐĞďŽĂƌĚ ŚĞĂƚŝŶŐ ŽŶůLJ͘ dŚĞ ĚŝůƵƚĞĚ ƐŽůƵƚŝŽŶ ŽĨ ŐůLJĐŽů ŵƵƐƚ ĐŽŶƚĂŝŶ
ďĞƚǁĞĞŶϮϱĂŶĚϱϱйŽĨ'ůLJĐŽů͘ĞĂǁĂƌĞƚŚĂƚŝŶĐůŽƐĞĚͲůŽŽƉŐůLJĐŽůƐLJƐƚĞŵƐ͕
ůŽǁ ƉƌĞƐƐƵƌĞ ŝŶ ƚŚĞ ŚĞĂƚ ĞdžĐŚĂŶŐĞƌ ĐĂŶ ĐĂƵƐĞ ůŽǁͲƚĞŵƉĞƌĂƚƵƌĞ ďŽŝůŝŶŐ͕
ƌĞƐƵůƚŝŶŐŝŶĞdžĐĞƐƐŝǀĞŶŽŝƐĞĂŶĚĚĂŵĂŐĞƚŽƚŚĞǁĂƚĞƌŚĞĂƚĞƌ͘ŽŶƐƵůƚǁŝƚŚƚŚĞ
ŐůLJĐŽůŵĂŬĞƌĨŽƌƐƉĞĐŝĨŝĐĂƚŝŽŶƐƉƌŝŽƌƚŽƵƐĞ͘
WARNING
ŝƌǀĞŶƚ
,ŽƚǁĂƚĞƌŽƵƚůĞƚƚŽĮdžƚƵƌĞƐ
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ŚĞĐŬǀĂůǀĞ
ŚĞĐŬǀĂůǀĞ
zͲ^ƚƌĂŝŶĞƌ
ŽůĚǁĂƚĞƌŝŶůĞƚ
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WƌĞƐƐƵƌĞ
ƌĞůŝĞĨǀĂůǀĞ
dŚŝƐŝƐĂĐŽŶĐĞƉƚĚƌĂǁŝŶŐŽŶůLJ͘
ƉƉůŝĐĂƟŽŶƐ
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