Install Instructions

20
A. General. Install wiring and ground boiler in accordance
with requirements of authority having jurisdiction, or in
absence of such requirements, the National Electrical
Code, ANSI/NFPA 70.
B. Install thermostat. Locate on inside wall
approximately 4 feet above floor. Do not install on
outside wall, near fireplace, or where influenced by
drafts or restricted air flow, hot or cold water pipes,
lighting fixtures, television, or sunlight. Allow free air
movement by avoiding placement of furniture near
thermostat.
C. Wire thermostat. Provide Class II circuit between
thermostat and boiler. Run wires through grommet
in L8148E Combination Control. Set thermostat heat
anticipator to 0.4 amps. See Figure 11.
D. Wire boiler. Boiler is rated for 120 VAC, 60 hertz,
less than 12 amperes. A separate electrical circuit must
be run from the main electrical service with an over-
current device/disconnect in the circuit. A service
switch is recommended and may be required by some
local jurisdictions. Connect circuit to black and white
wires and green ground screw. See Figure 11.
VI. Electrical
E. New Yorker Link SL™ indirect water heater (if
used). See Figure 11. Also refer to New Yorker Link
SL™ Installation, Operating and Service Instructions.
1. Zoning with Circulators, Domestic Hot Water
Priority. Provide DPDT relay. Connect coil to
New Yorker Link SL™ indirect water heater
thermostat. Connect normally open contacts to
L8148E Combination Control terminals 'Z' and
'B'. Disconnect yellow circulator wire terminal
'C1' in L8148E Combination Control. Connect
normally closed contacts to 'C1' terminal and yellow
circulator wire.
2. Zoning with Circulators, Nonpriority. Connect New
Yorker Link SL™ indirect water heater circulator
zone control to L8148E Combination Control
terminals 'Z' and 'B'.
3. Zoning with Zone Valves. Connect New Yorker
Link SL™ indirect water heater thermostat to zone
valve. Connect zone valve end switch to L8148E
Combination Control terminals 'T' and 'TV'. See
Paragraph F.
F. For installations using zone valves provide separate
transformer for zone valve wiring. Consult zone valve
manufacturer for assistance.
NOTICE
PVCG boilers built for installation at altitudes greater than 2,000 feet above sea level have been specially
oriced to reduce gas input rate. See rating label for gas orice size. High altitude boiler models are
identiable by the second digit in the model number sufx on the rating label:
PVCG_O_1-_2_: Less than 2000 ft. elevation
PVCG_O_1-_5_: 2000 to 5000 ft. elevation
DANGER
Positively assure all electrical connections are unpowered before attempting installation or service of
electrical components or connections of the boiler or building. Lock out all electrical boxes with padlock
once power is turned off.
WARNING
Failure to properly wire electrical connections to the boiler may result in serious physical harm.
Electrical power may be from more than one source. Make sure all power is off before attempting any
electrical work.
Each boiler must be protected with a properly sized fused disconnect.
Never jump out or make inoperative any safety or operating controls.
The wiring diagrams contained in this manual are for reference purposes only. Each boiler is shipped
with a wiring diagram attached to the left side of the boiler. Refer to this diagram and the wiring diagram
of any controls used with the boiler. Read, understand and follow all wiring instructions supplied with
the controls.