PEERLESS Pinnacle PI-199 Installation, Operation & Maintenance Manual page 7

2.
3.
4.
5.
Size the supply and return to suit the system. Refer
to Figure I. Refer also to the I-B=R Installation
Guide No. 2000 and the Peerless Water Survey for
additional guidance during water piping installation.
The boiler incorporates a pressure switch in the
Outlet Manifold. This switch will not let the boiler
operate without a minimum of 10 PSI on system.
Refer to Figure ] for suggested controls and
components location in the near boiler piping.
In older hydronic systems where sediment may exist,
install a basket strainer to prevent particles from
returning to boiler.
Install this boiler so that the gas ignition system
components are protected from water {dripping,
spraying, etc.) during appliance operation and
service {circulator replacement, condensate trap,
control replacements, etc.)
6
7.
8.
If this boiler and distribution system is used in
conjunction with a refrigeration system, i_Jipe the
chilled medium in parallel with the boiler and install
the proper valve to prevent the chilled medium from
entering the boiler
When the boiler is connected to heating coils
located in air handling units where they may be
exposed to refrigerated air circulation, install flow
control valves or other automatic means to prevent
gravity circulation of the boiler water during the
cooling cycle.
If the boiler is installed above radiation level, provide
a low water cutoff device at the time of boiler
installation.
All piping must be properly supported. See Figure 1.
SYSTEM
_ (_ F_jt_ (_) _RGE & BALANCE VALVE _UP=PLY__
_ I_ BACK rL_,4 pREVeNTER ._.
_ I_) LOW pRESSURE FIED (15 _ NQIqI_L}
_ I_ EXPANSION T&_
t _I)Alll VEtlT (Mi rco bubbler Air
Etimtnltol" Recmer_led)
• _ DRAIN VALVE
_ TEMPERATURE I pRESSURE GAEE
tITE_$U I_PLIEOBYC_ITRACTOR CONNECT TO _OILER SUPPLY I_IT
SYSTEM F_ I_
_VltCH
CD_N _
E:o_JST E
_ rl/KET
CONNECT TO BOILER RETURN COLD
_.L pe._= _U=T E _m_lU.V _ttW'a_T[It
_IU_R HO
¢OL_
_l_ONt
NOTE: I_I U_R CONNECTIONS
ARE I I/i" N_T
LEfT _I_ VI{W
Figure 1: Supply and Return Near Boiler Piping
4