415005 Topvex TR Operation and Maintenance Instructions

Topvex TR800, TR1300, TR1800, TR4000

Operation and Maintenance Instructions

Systemair Inc.

Danger

• Make sure that the Main power supply to the unit is disconnected before performing any

maintenance or electrical work!

• All electrical connections must be carried out by an authorized installer and in accordance with local

rules and regulations.

Fig. 2 Reset of the manual overheat protection in Topvex TR800-4000

2.2.4 Temperature Sensors

2.2.5 Hydronic Heater for TR800-4000

In units equipped with a hydronic pre-heater, the water coil is located below the outside air connection. In

units equipped with a hydronic re-heater, the water coild is located below the supply air connection. The coil

material is copper piping with a frame of galvanized sheet steel and aluminun ns. Both pre-heater & re-

heater are equipped with a frost protection sensor.

Both hydronic pre-heater and re-heater function outputs are modulated by the unit control in order to maintain

their respective air temperature set points.

For Topvex TR800-4000 units without pre-heater and/or re-heater, a heating water coil can be equipped

inside the unit. See “HWC-EPH Installation Instructions” manual (420353) for correct procedure.

In Topvex FR800-3800 all temperature sensors are mounted and wired inside the unit except for the supply air

sensor, which is delivered uninstalled with the unit and needs to be installed in the supply air duct externally

from the unit. See Installation instruction for more detailed information.

2.2.6 Electrical Heater for TR800-1800

In unites equipped with an electric pre-heater, the heating rods are located below the outdoor air connection.

In units equipped with a built in electric re-heater (EL units only), the heating rods are located belowthe

supply air connection. The heater material is stainless steel. Both electric heaters have automatic and manual

overheating protection. The manual overheat protection is reset by pushing the reset button on the electrical

(see gure 3).

Both electric pre-heater and re-heater function outputs are modulated by the unit control in order to maintain

their respective air temperature set points.

For Topvex FR800-1600 units without pre-heater, an electric heater can be equipped inside the unit. See

“HWC-EPH Installation Instructions” manual (420353) for correct procedure.

• Supply air sensor

• Extract air sensor

• Outdoor air sensor

• Exhaust air sensor

• Extra unit sensor

. Only if pre heater is installed