Electrical - New Yorker CL Steam Series Installation, Operating And Service Instructions

6

Electrical

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.
• 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 primary control may be damaged or may not function properly if 120 volt power supply is NOT wired into
control as follows:
The 120V interrupted hot (black) wire must be connected to the primary control black wire, the 120V neutral
(white) wire must be connected to the primary control white wire and the 120V constant hot (red) wire must be
connected to the primary control red wire.
A. GENERAL
1. Install wiring and electrically ground boiler in
accordance with requirements of the authority
having jurisdiction, or in absence of such
requirements the National Electrical Code, ANSI/
NFPA 70.
2. Refer to National Electric Code or Local Electric
Codes for proper size and type of wire required.
Follow Code.
3. A separate electrical circuit must be run from
the mail electrical service with an over-current
device/disconnect in the circuit. A service
switch is recommended and may be required
by some local jurisdictions.
4. Use anti-short bushings on all wiring passing
through boiler jacket, junction boxes and/or
control boxes.
5. Use armored cable (BX) over all exposed line
voltage wiring.
6. If an indirect domestic water heater is used,
use priority zoning. DO NOT use priority zoning
for Hydro-Air Systems.
7. Wiring should conform to Figures 6-1 and 6-2.
110772-01 - 5/20
CL
!
DANGER
!
WARNING
B. INSTALL A ROOM THERMOSTAT on an inside
wall about four feet above floor. Never install
thermostat on an outside wall or where it will be
influenced by drafts, hot or cold water pipes,
lighting fixtures, television, rays of the sun or
near a fireplace. Keep large furniture away from
thermostat so there will be free movement of room
air around this control.
Installation & Service Manual
17