Hussmann proto-aire Manuel De Montage
Protocol™ Installation and
Service Manual
Protocol™ with Heat Reclaim
Oil Return System Not shown
When heat reclaim (for water or air) is used with the Protocol™ a 3-Way Heat Reclaim
Valve should be installed after the oil separator. A bleed line should be installed from the
heat reclaim valve to the angle valve found in the suction header. A check valve is
installed in the heat reclaim return loop. This check valve ensures that back flow through
the heat reclaim coil is eliminated when heat reclaim is not used. Refer to specific
manufacturers guidelines for sizing reclaim coils. In the case of water heat reclaim, a 10#
check valve should be used to bypass the water tank in the case that the pressure drop
across the tank become excessive.
Oil Return System Not shown
When heat reclaim (for water or air) is used with the Protocol™ a 3-Way Heat Reclaim
Valve should be installed after the oil separator. A bleed line should be installed from the
heat reclaim valve to the angle valve found in the suction header. A check valve is
installed in the heat reclaim return loop. This check valve ensures that back flow through
the heat reclaim coil is eliminated when heat reclaim is not used. Refer to specific
manufacturers guidelines for sizing reclaim coils. In the case of water heat reclaim, a 10#
check valve should be used to bypass the water tank in the case that the pressure drop
across the tank become excessive.
Suction
Filter
Angle Valve
L
iqu
id
Branch Line
Suction Branc
h
Line
Case
Case
Case
Case
Compressors
Suction Header
Blee
d Line
Turba-Shed
Oil Separator
Oil Separator
Check Valve
Discharge Header
Heat
Reclaim
Coil
Sight Glass
Liquid Line
Filter / Drier
Filter / Drier
Receiver
3-Way Heat Reclaim Valve
Condenser
43