9
Minivap Trouble-shooting Check-List
Preliminary Check:
-Use manual drain switch to check pump operation (On/Off switch in 'off position)
Symptom:
Check/cause/remedy
Red 'Power-On' Neon
-Check main power is connected and switched on.
- not lit
-Check security circuit is complete (fan interlock, high humidity override).
-Check power supply fuses.
-Check Power-On neon.
Red 'Power-On' Neon - lit
-Check the switch is in the position marked 1 (unit On position).
Water in the cylinder
-Check Minivap internal control circuit fuse.
No current
-Check humidistat.
-Minivap automatic STOP function has operated for one of the following reasons:
a) Feed Fault STOP
b) Drain Fault STOP
c) High Overcurrent STOP
If no obvious Feed Fault condition (a) exists, i.e. no water in cylinder, assume that (b)
or (c) applied. Carry out full inspection of cylinder and drain pump. Switching the unit
Off and On again cancels the automatic STOP condition but user should not put unit
back into service until the above action has been taken and the cause of the
interruption remedied.
-Slow start-up situation with a new cylinder. Low conductivity (soft) water. Add Alka
Seltzer to boost conductivity of the water. If above action is not successful and
condition returns, an alternative lower resistance cylinder may be necessary
Red 'Power-On' Neon - lit
-Reduced output due to scale deposits,.
Water at top of the cylinder
Remove cylinder for rinsing out and re-use or fit a new replacement cylinder.
and low current
Minivap Model
LDV4
LDV4-S
Output Range
kg/h
1.5 – 2.75
2.75 – 5.5
lb/h
3 – 6
6 – 12
Max Output
kg/h
2.75
5.5
lb/h
6
12
Power Rating
kW
2.1
4.2
Electrical Supply 1Ø 60 Hz
Volts
120
240
208
Full Load Current
Amps
19
19
19
Fuse Rating
Amps
25
25
25
Height
mm
500 (19¾”)
Width
mm
325 (12¾”)
Depth
mm
230 (9”)
Service Weight
kg
16 (35 lb)
RDU Height
mm
185 (7¼”)
RDU Weight
kg
3.5 (8 lb)
Steam Pipe/Nozzle
No.
1
Steam Hose Diameter
mm
22
Control System - On/Off
Steam Hose
-
internal diameter 22mm (7/8")
Steam Hose Length
-
recommended maximum 2m with continuous fall back to, the Minivap unit.
Condensate Hose
-
internal diameter 6mm (1/4")
Water Connection
-
3/4" threaded connection to Minivap feed valve - use flexible connector supplied with
unit which (underside) has VC threaded nylon nut at each end.
Drain Connection
-
has connection size 35mm (1 3/4") diameter unthreaded - use short length of hose to
interconnect (underside) onto copper pipe and discharge drain water to one side of
unit into an open tundish.
