Raypak 120 Outdoor Sensor Connection, 13. 3-WAYVALVE WIRING CONNECTION, Remote Control Connection

12. OUTDOOR SENSOR CONNECTION

The user can program the desired supply temperature based on the outdoor temperature. Once the outdoor sensor is connected to the control board, the water temperature of the boiler will adjust to run the boiler more efficiently and provide greater comfort to the living space.

Connection Specification – Wire 22 AWG maximum to 100 ft (30 m). Outdoor Sensor is connected in the junction box on the XPak. Route wires from the terminal strip to your outdoor sensor, which will allow the user to change the temperature going to the Central Heating loop automatically. Place the outdoor sensor preferably to the north or northwest or to the side which will be affected by changing weather conditions outside. NOTE: Do not locate the sensor in the direct sunlight.

13. 3-WAY VALVE WIRING CONNECTION

XPak boiler can manage an external 3-way valve (field supplied), the terminal strip (M3a) output is 120V – 60 Hz (see electric diagram).

Logic of the boiler managing 3-way valve

1.Boiler configuration in DHW (case A and case B), see Fig. 61 for boiler jumper configuration.

2.Once the jumper has set in DHW mode (tank with probe or tank with thermostat), when there is a heat request from the sensor or from the thermostat, there is power out (120V – 60 Hz) to the boiler terminal strip M3a (Fig. 35).

3.The output to the 3-way valve DHW pin is continuously supply up to the heat is satisfied.

4.The room thermostat request is independent from the DHW request (Priority is always given to DHW production).

5.The 3-way valve is always powered, even if there is no DHW demand.

WARNING: The 3-way valve is continuously powered even if there is no heat request from the tank.

Wiring connections 3-way valve

Suggested source: Honeywell VC6011 (actuator) + VCZMK6000 Wiring the valve as per diagram Fig. 38.

Follow the installation of the piping referring to the diagram showing the logic of working Fig. 38.

The connections colors and schematic refer to the Honeywell VC6011 (actuator) + VCZMK6000.

14. REMOTE CONTROL CONNECTION

The boiler can be fully remoted using an open therm plus remote control (use only Raypak REC 08 Part No 013073).

When the control is installed with the boiler display shows as per Fig. 36. No operation can be made on the boiler control panel once the remote control is installed.

All the boiler settings can be made only by Remote Control once it is connected.

See Remote Control instruction for setting and use.

Fig. 36

Fig. 37

Fig. 38

Choose one of the two options for the strain relief that XPak allows

2

1

Fig. 39

1

2

Main supply cable

3 way valve cable

1

Straight-Thru:

Heyco HFC-Z 1/2

Listed under UL File #E-206446

2

Strain Relief

Bushings:

Heyco SR 7K-2

Listed under UL File

#E-15331 CSA

LR8919

37