NuAire ecosmart CONNECT BPS, Инструкция по установке и обслуживанию

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nuaire.co.uk 029 2085 8200
BOXER BPS ECOSMART CONNECT CONTROL (CO)
Key:
Internal Factory Connection
Customer Connection
F1 : Fuse 1.6A 5x20mm
W1 : Frost Stat
Electric Heater Supply
(Overcurrent protection by others)
Earth N
Local Rotary Lockable
IP66/67 Isolator
L1
E N
1.6A
Fuse
F1
Blue Brown Grey
Earth
Frost Common
Healthy
Unused
W1: Frost Stat
BLUE ORANGE GREY
LPHW Actuator Connections
(LPHW Actuator by others)
BLUE
BROWN BROWN
GREY
Green & Yellow
9.0 FROST COIL
9.2 Frost Coil - Electric Heater
9.1 Frost Coil - LPHW
Where they are provided, electric heater frost coils are fitted with its own
internal control panel. The control is powered by a 400Vac 50Hz 3 phase
& Neutral supply. This must be isolated local to the unit and fitted with
appropriate overcurrent and fault protection. It connects to the main unit via
“plug and play” interconnecting looms. (See interconnection section for details).
No external connections are required. Electric heater elements are protected by
a fail-safe over-temperature switch which will disconnect the heater supply if a
temperature of 80°C is reached. Once the elements cool, the switch will reset
but a power cycle is required to reset the heater supply contactor.
The frost coil is fitted with a burst fired controller with integral setpoint, air
off thermistor, air in frost stat, thermal cut-out and contactor. The burst fired
controller is only enabled if the frost stat reads a frost condition, the over-
temperature cut-out is healthy AND a 24vac fan run signal is received from the
main control panel. Once enabled the burst fired controller will increase heating
output to achieve the setpoint set by the physical dial on the unit.
Where they are provided, LPHW frost coils are fitted with a frost stat on the air
in side and an on/off 230v valve actuator. If the frosts stat switches to a frost
condition, the valve actuator will open. The valve will open whether the fans are
running or not. This is for pipe freeze protection. The LPHW section requires its
own supply in order to power the valve actuator.
9.1.1 Electrical Supply Details - FLC
Unit Size Electric Frost Heater
FLC (Anciliary)
LPHW Frost Coil FLC
(Anciliary)
B*05V/**CO 17.5 A 0.1 A
B*05T/**CO 17.5 A 0.1 A
B*10V/**CO 35 A 0.1 A
B*10T/**CO 35 A 0.1 A
B*15V/**CO 52.5 A 0.1 A
B*15T/**CO 52.5 A 0.1 A
B*20V/**CO 52.5 A 0.1 A
B*20T/**CO 52.5 A 0.1 A
‡ Double electric heater models require separate supplies for two heater
sections, each with an appropriate overcurrent current protection device.
9.3 LPHW Frost Coil Wiring - BPS Sizes 05, 10, 15 & 20
Figure 35.