Slant/Fin VSPH-60, VSPH-180 Thermostat Connections, Multi Zoning, Water Piping

18 VICTORY VSPH Models

2.Power Connection

A.Remove electrical junction box cover.

B.Hot connection lead is black. Neutral connection lead is white. Proper polarity is important for VSPH boilers. Reversed polarity will cause system lockout and the power LED will flash continuously.

C.Connect ground wire to ground screw inside the junction box.

D.Replace junction box cover.

THERMOSTAT CONNECTIONS

2. Circulating Systems

Victory VSPH boilers are equipped with a water circulating pump mounted to the return water connection on the boiler. This pump location is appropriate for most installations. It may be desired and proper to locate this pump to the alternate location shown in Figure 17, especially when applied to larger systems using high-head pumps.

When the pump is removed there is a 11⁄2” FPT tapping that the return pipe may be attached to.

At one month intervals after the last call for heat, the circulator will be energized for 30 seconds. Short operation after long term idle periods prevent damage of the pump from sedimentation.

Install thermostat on an inside wall and away from any heat sources, sunshine and drafts. Thermostat wires must be connect- ed to terminals block on boiler. See wiring diagram Figure 13a.

Thermostat heat anticipator: For a non-zoned system set thermo- stat heat anticipator to 0.4 Amps, for zoned system set to match power requirements of zone valves or relays. Refer to manufactur- er’s instructions and specifications. Also see instructions with ther- mostat.

MULTI ZONING

For multiple zoning, either zone valves or circulators maybe used.

For zone valve system see Figure 14.

PRESSURE REDUCING (FILL)VALVE

GATE VALVE

W ATER FEED

FLOW CONTROL

VALVE

SUPPLY

ALTERNATE

CIRCULATOR

LOCATION

EXPANSION

TANK

DRAIN COCK

AIR VENT

3/4"PRESSURE

RELIEF VALVE

RETURN

FACTORY

CIRCULATOR

LOCATION

For pump zoning system see Figure 15 and Figure 16.

DO NOT use boiler transformer to power external accessories like zone valve and relays, overload and/or burned-out transformer and boiler malfunction can result. Use separate transformer to power such components. For pump zoning system, remove boiler circulator wire connector from P5 of electronic boiler control (See Figure 13b).

WATER PIPING

Always follow good piping practices. Observe minimum 1" clear- ance to combustibles around all uninsulated hot water pipes or when openings around pipes are not protected by non-com- bustible materials.

On a hot water boiler installed above radiation level, the boiler must be provided with a low water cutoff device at the the time of installation by the installer (see Figure 17 for piping arrangement).

The low water cutoff must be wired in series with rollout safety switch and Aquastat (limit control). See wiring diagram Figure 13a.

1.Supply and Return

For tapping sizes see dimensions on page 2. Shut-off valves are recommended.

Figure 17. Piping arrangement

3.Radiant Floor, Low Water Temperature and large water volume systems

A boiler by-pass loop, three way valve arrangement, or primary secondary pumping (with a boiler loop) must be used to provide a minumum 130˚ return water temperature to the boiler. This will prevent condensation on the cast-iron sections that can result in improper operation of the boiler.

4.Air control system

Diaphragm type compression tank is used to control system pressure. It must be installed at the boiler or between boiler and supply main pump(s).

An automatic air vent is used to remove air from the system in Figure 17. If system pressure needs further control, add an additional tank in parallel with original tank or install a larger capacity tank. Use appropriate size tank for volume of water in system. See chart for boiler’s volume.

Boiler Water Content

Model	Pounds	Gallons
VSPH-60	24.75	3.0
VSPH-90	32.00	3.8
VSPH-120	39.25	4.7
VSPH-150	46.50	5.6
VSPH-180	53.75	6.4