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Question 1

Where are the fridge plants

Answer 1

7J
8/9Q

Question 2

What are the fridge temps

Answer 2

HT 13-17
MT 3-7
LT -18. -22

Question 3

What colours are in sight glass and glass and what is traffic light system

Answer 3

Yellow-moisture
Green-dry

Red-no oil
Amber-oil starting
Green-oil circulating

Question 4

What refrigerant is used for fridge plant and what is sw pressure

Answer 4

R404a
2.3 bar

Question 5

What is the fridge cycle

Answer 5

Comp-hot hp gas
Condenser-warm hp liquid
Tev-cool lp liquid
Evaporator-cold lp liquid

Question 6

Where are the chilled water plants and what refrigerant they use

Answer 6

3-K
3-F
4-N
1-P

R134a

Question 7

What are sw and cw pressure differentials

Answer 7

0.72
0.36

Question 8

Where are the cw boost pumps

Answer 8

5F
5G
5M
4N

Question 9

Where are hpacs and lps

Answer 9

4b
4f
4p
4t
5L
01M

3R
3M

Question 10

Hpac stages and relief

Answer 10

2.5-3.5. -6
12-17. -20
60-80. -90
240-300. -330

Question 11

9 step lpac

Answer 11

Compressor
Oil tank
Oil sep
Air cooler
Heat exchanger
Filter
Dryer
Filter
Ringmain

Question 12

ATU steps

Answer 12

Filter
Cooling coil
Drop eliminator
Fan

Question 13

Where are afus

Answer 13

2D - 4 fans
3L - 4 fans
2S/T -7fans

Question 14

What does CW cool

Answer 14

Atu,node room,phalanx,radar,sstx